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Acknowledgments................................................................1Welcome Messages...............................................................1

General InformationImportant Information .......................................................3Meeting Facilities .................................................................6Offsite Venues.......................................................................6Huntington Convention Center Map ................................6Hilton Cleveland Downtown Map.....................................7

Plant Health 2019 Program-at-a-Glance................... .8

Daily Schedules of Meetings andScientific SessionsSaturday, August 3..............................................................10Sunday, August 4................................................................12Monday, August 5...............................................................18Tuesday, August 6...............................................................24Wednesday, August 7.........................................................31

ExhibitorsPlant Health Hub Floor Plan............................................35Exhibit Hours.....................................................................36Exhibitor List......................................................................36

Plant Health 2019 PostersPoster Schedule and Titles by Category..........................37Poster Titles and Authors................................................38

Recognition and Thank You..........................................68

Advertiser IndexAgdia.................................................................Back Cover

AcknowledgmentsThank you to all the Plant Health 2019 meeting sponsors

PLATINUM

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SUPPORTING

Sponsors listed as of July 11, 2019.

Table of Contents

APS/APHIS Widely Prevalent Virus Committee

Sow, Know, and Grow

Seed Science Center

Lorem ipsum

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Welcome to Plant Health 2019

n behalf of The American Phytopathological Society, I’d like to welcome you to Cleveland for Plant Health 2019! This year’s theme, “Sow, Know, and Grow,” celebrates the breadth of the work we do in plant pathology, from applied field work to fundamental and exploratory work. “Sow” and “grow” reflect the applied aspects, while “know” (standing in for “knowledge”) represents the more basic aspects of plant pathology.

During the next few days, we will explore the development of new ideas and the expansion of knowledge as we all work to grow the visibility of our discipline. Sunday’s opening keynote speaker, Jude Wilson, will kick off the meeting with her talk “The Surprising Science of Mushrooms,” which highlights the key decisions and moves that led her to attempt to save the world with mushrooms. The Monday plenary speakers will all represent different aspects of the meeting theme. We are very excited to have Julie Borlaug, granddaughter of Norman Borlaug, close Plant Health 2019 on Wednesday with her talk “Disruptive Innovations and the Communications Challenge.”

This year’s scientific program will include our familiar technical and poster sessions, but posters will be featured in two sessions. ePosters are available to enhance the interaction with the author and are also available, as submitted, via the meeting app. Several special sessions have been organized in innovative formats, such as panel discussions or phytoviews, and all have been designed holistically, with topics and speakers specifically chosen to dive deep into important topics. Please also take advantage of the many social gatherings and networking opportunities available to renew old friendships, make new ones, and engage with colleagues from all over the world.

We’re happy to see you at Plant Health 2019!

Kira Bowen, APS President

Welcome Messages

elcome to Plant Health 2019! This year’s annual meeting is the inaugural meeting with the new brand name “Plant Health,” and we are very excited for the innovation, collaboration, and growth that this rebranding of the annual meeting will bring to our society and membership!

We have more than 40 special and technical sessions and nearly 700 posters to highlight the latest in research and advancements. The Hot Topic sessions this year include two panel discussions covering federal funding opportunities and fungicide resistance in agriculture, veterinary medicine, human medicine, and the environment. There is something for everyone at Plant Health 2019, and as is often the case, it may be difficult to choose from among the many sessions!

With a new look and feel, the exhibit hall is now called the “Plant Health Hub.” As the name implies, the hall will be the central location for opportunities to network. POD Talks, Ask the Editor (our version of Apple’s Genius Bar), the APS PRESS bookstore, ePosters, exhibits, and Idea Cafés are just some of the networking activities in Plant Health Hub. In addition, because of increasing interest and popularity, the Idea Cafés will be spread over three days: Monday, Tuesday, and Wednesday. Welcome—and enjoy all that Plant Health 2019 has to offer!

Lindsey du Toit,Plant Health 2019 Program Chairand APS President-Elect

OW

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App In! The Meeting at Your Fingertips!! With the Plant Health 2019 mobile app, you’ll receive the latest meeting updates, have access to the most detailed program content, and be able to connect with other attendees!

Here are the best features: • Browse the program schedule, posters, and general information. • Customize your schedule • Access session information, including full abstracts. • Connect with other attendees—send messages and make appointments. • Contact poster authors directly to schedule time outside regular poster hours to meet and discuss poster content.

Get the app—it’s free! Available for iOS (iPhone and iPad) and Android devices.Go to planthealth2019.org/mobileapp to find links to your mobile app store, or search on Phytopathological inyour app store.

NEW! Plant Health HubHall C, Huntington Convention Center

We’ve rebranded the exhibit hall—it’s now the Plant Health Hub. The Hub is where it’s all happening! Look for these activities inside the Plant Health Hub:

• Registration • APS PRESS bookstore • Ask APS (our version of Apple’s “Genius Bar”) • Network with exhibitors • Posters and ePosters • Welcome reception • Idea Cafés • POD Talks • One-to-One Conversations with an Expert Individual days and times will vary per event. Visit the mobile app or see the daily schedule beginning on page 10 for a detailed schedule of events.

Plant Health Hub General Hours

Sunday, August 4 4:00 – 7:00 p.m.Monday, August 5 7:00 a.m. – 6:00 p.m.Tuesday, August 6 8:00 a.m. – 6:00 p.m.Wednesday, August 7 7:00 – 11:00 a.m.

NEW THIS YEAR! ePostersAPS is excited to announce that ePosters will be viewable to meeting attendees throughout and shortly after the meeting. ePosters will be accessible through both the mobile app and at ePoster viewing screens near the poster boards in the Plant Health Hub.

OIP Silent Auction The Office of International Programs (OIP) hosts the Annual Silent Auction to raise funds for the Global Experience Award, which supports scientists’ research and outreach efforts in developing countries. Support this great cause by donating items or by bidding to purchase items. The auction will take place on Monday, August 5, from 11:30 a.m. to 6:00 p.m. in the Plant Health Hub. Contributions to support the Global Experience Award will be accepted at the APS Foundation booth.

General Information

Sow, Know, and Grow

• University alumni networking events • OIP Silent Auction • APS Foundation • Office of International Programs (OIP) • Office of Public Relations and Outreach (OPRO) • Public Policy Board (PPB) • Pitch120 • International Year of Plant Health Initiatives

Registration HoursPlant Health Hub, Hall C

Sunday, August 4 7:30 a.m. – 6:00 p.m.Monday, August 5 7:00 a.m. – 6:00 p.m.Tuesday, August 6 7:30 a.m. – 5:30 p.m.Wednesday, August 7 7:30 – 11:00 a.m.

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APS PRESS Bookstore Plant Health Hub, Hall C Visit the APS PRESS bookstore—newly designed and at the center of the Plant Health Hub! Watch for daily app notifications about special events and offers, including featured stickers, new T-shirts and hoodies, and the APS PRESS “Hot 100” and “The Wall” of compendia hit lists. Everything’s on sale, including new titles! New this year: Jump the line and shop for books with your phone by scanning QR codes. Also talk with us about publishing your own book or journal article at the “Publish with APS” and “Ask APS” stations.

Bookstore HoursSunday, August 4 4:00 – 6:00 p.m.Monday, August 5 8:30 a.m. – 6:00 p.m.Tuesday, August 6 8:30 a.m. – 6:00 p.m.Wednesday, August 7 8:00 – 11:00 a.m.

APS Foundation Become a supporter of APS Foundation! Visit our booth or talk to our mobile donation volunteers. You can help us train a generation of scientists that will feed the world. APS Foundation is the charitable arm of our society. We have just launched a campaign to double our endowment, and your gift is essential to our mission to provide critically needed support to people in need across the United States and around the world. Give to APS Foundation. Visit APSnet.org/GIVE.

Get to Know the Science at Plant Health 2019Be on the lookout for the following program formats to take advantage of all that Plant Health 2019 has to offer!

Open Meeting Room A small meeting room for up to 30 people is available for use during the meeting at the Huntington Convention Center. To check on the room’s availability and to reserve a time slot, stop by Registration.

Speaker Ready RoomRoom 20, Huntington Convention Center

The Speaker Ready Room is available for presenters to do the final loadings of presentations. All session presenters must upload their presentations the day before they are scheduled to present.

Saturday, August 3 4:00 – 7:00 p.m. Sunday, August 4 8:00 a.m. – 5:00 p.m.Monday, August 5 7:00 a.m. – 4:00 p.m.Tuesday, August 6 7:00 a.m. – 4:00 p.m.Wednesday, August 7 7:00 – 9:30 a.m.

Phytoviews

ePosters Interact with the latest research of your colleagues in an entirely new way at Plant Health 2019 – all poster presenters were given the option of creating an interactive eposter. Posters will be displayed in two groups this year, but all eposters will be available the entire meeting.

HOT TOPIC Catch the latest science in trending plant pathology topics

Idea Café Gather informally to discuss solutions and innovative ideas on topics of interest to you and your colleagues Panel Discussions Listen to invited panelists give short introductory talks, and then join in an engaging discussion with your fellow plant pathologists Phytoviews Experts explore various points of view on topics of interest through facilitated conversations POD TALKS Connect with selected notable phytopathologists in an informal setting as they discuss their career journeys and share their stories, insights, and experiences in the world of plant pathology.

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Family Friendly Offerings The Family Friendly Team is excited to share various activities and events at Plant Health 2019! Find out more (and create!) at our interactive Family Friendly Bulletin Board, located near Registration, and by keeping an eye on #FamilyFriendlyAPSon Twitter.

Pitch120! Pitch your Science in a Friendly, Easy-Going Competition Sponsored by the Office of Public Relations and Outreach (OPRO), join us at the Welcome Reception for Pitch120, where individual members give 2-minute scientific “pitches” in layperson’s terms to a small panel of judges. Come and support your fellow members as they hone their scientific communication skills!

Nursing MothersThe Huntington Convention Center is pleased to offer a dedicated private space for nursing mothers during the meeting. Two fully equipped Mamava nursing pods are located within the facility: one near Room 1 and the other located outside Room 9. The nursing pod outside Room 9 will be the closest pod to the Plant Health 2019 meeting space.

No refrigeration is available inside the nursing pod, but APS will have a refrigerator in the locked APS staff office for use by nursing mothers. Please stop by Registration to gain access to the refrigerator.

Get Social During the Meeting!Keep your finger on the pulse of the meeting, follow the official #planthealth2019 hashtag, and engage with fellow attendees! Locate your favorite workshops, view photos, and exchange ideas with colleagues on social media. Use #planthealth2019 on LinkedIn, Twitter, Facebook, and Instagram to share your Plant Health 2019 experience with your network.

NEW! Mobile App Scavenger HuntBrand new this year, we’re hosting a Plant Health Rocks! Scavenger Hunt on the meeting mobile app. Download the app and start hitting the checkpoints. It’s a great way to explore the Plant Health Hub. Plus, if you complete every stop, you’ll be eligible to win great prizes—like a complimentary registration to Plant Health 2020 or a free 1-year APS membership!

Expected Behavior PolicyWe are dedicated to providing a harassment-free meeting experience for everyone, regardless of gender, sexual orientation, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of participants in any form. We ask all attendees, exhibitors, speakers, sponsors, volunteers, guests, and other participants to be considerate of and respectful to all members and to refrain from demeaning, discriminatory, or harassing behavior and speech. APS reserves the right to remove any individual from attendance or other participation in any APS-sponsored event without prior warning or refund and to take additional action as determined necessary, up to and including expulsion from participation in APS. Any course of action recommended by APS is final.

Please note: If you register a guest for the meeting, you may be held responsible for his or her actions.Violations of this policy should be reported to meeting staff.

Sow, Know, and Grow

MEETING FACILITIESHuntington Convention Center of Cleveland300 Lakeside Ave. EastCleveland, OH 44113

Hilton Cleveland Downtown (Headquarters Hotel)100 Lakeside Ave. EastCleveland, OH 44114

OFFSITE VENUESIndustry and Extension SocialMonday, August 5, 6:30–9:30 p.m.Punch Bowl Social Cleveland1086 West 11th St.Cleveland, OH 44113Discovery Walk: Cleveland Botanical GardenMonday, August 5, 7:00–9:15 a.m.11030 East BoulevardCleveland, OH 44106Bus will depart from the Lakeside Entrance (300 Lakeside Ave.) of the Huntington Convention Center.

Discovery Walk: Ohio City FarmTuesday, August 6, 7:45–10:00 a.m.Bridge Ave. and W 24th St.Cleveland, OH 44113Bus will depart from the Lakeside Entrance (300 Lakeside Ave.) of the Huntington Convention Center.

Cleveland Rocks! Celebration NightTuesday, August 6, 7:00–9:30 p.m. Rock & Roll Hall of Fame1100 East 9th St.Cleveland, OH 44114

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Map and Center OverviewHuntington Convention Center of Cleveland and Global Center for Health Innovation

Ballroom Level

Meeting Rooms

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HILTON CLEVELAND DOWNTOWN MAP

29’ x 20’ x 9’

52’ x 31’ x 12’

C, B Each 52’ x 30’ x 12’

52’ x 28’ x 12’

104’ x 54’ x 18’ 104’ x 61’ x 18’

33’ x 49’ x 18’

32’ x 49’ x 18’

39’ x 49’ x 18’

Hope Ballroom A-B 65’ x 49’ x 18’ Hope Ballroom A-C 104’ x 49’ x 18’ Hope Ballroom A-D 104’ x 110’ x 18’ Hope Ballroom B-C 71’ x 49’ x 18’ Hope Ballroom D-E 104’ x 115’ x 18’

127’ x 59’ x 22’ 127’ x 60’ x 22’

71’ x 56’ x 22’

56’ x 56’ x 22’

D, C, B, A Each 25’ x 31’ x 19’

Superior Ballroom A-B 127’ x 56’ x 22’ Superior Ballroom A-C 127’ x 116’ x 22’ Superior Ballroom C-D 127’ x 119’ x 22’

29’ x 20’ x 9’

52’ x 31’ x 12’

C, B Each 52’ x 30’ x 12’

52’ x 28’ x 12’

104’ x 54’ x 18’ 104’ x 61’ x 18’

33’ x 49’ x 18’

32’ x 49’ x 18’

39’ x 49’ x 18’

Hope Ballroom A-B 65’ x 49’ x 18’ Hope Ballroom A-C 104’ x 49’ x 18’ Hope Ballroom A-D 104’ x 110’ x 18’ Hope Ballroom B-C 71’ x 49’ x 18’ Hope Ballroom D-E 104’ x 115’ x 18’

127’ x 59’ x 22’ 127’ x 60’ x 22’

71’ x 56’ x 22’

56’ x 56’ x 22’

D, C, B, A Each 25’ x 31’ x 19’

Superior Ballroom A-B 127’ x 56’ x 22’ Superior Ballroom A-C 127’ x 116’ x 22’ Superior Ballroom C-D 127’ x 119’ x 22’

Sow, Know, and Grow

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View detailed programming, specific times and room assignments for all of Plant Health 2019 in the daily schedules, which begin on page 10.

*Plant Health Hub is the new look of the Exhibit Hall – see schedule on page 37 for details on Poster Viewing, PRESS Bookstore and Networking with Exhibitor times.

Program-at-a-Glance

Workshops8:00 am – 5:00 p.m.

Field Trips8:00 am – 5:00 p.m.

APS Committee Meetings

6:00 – 9:30 p.m.

Opening General Session

10:00 – 11:30 a.m.

Scientific Sessions1:00 – 4:00 p.m.

Plant Health Hub Open*

4:00 – 7:00 p.m.

Welcome Reception4:00 – 6:00 p.m.

University Networking Events

6:00 – 7:00 p.m.

Discovery Walk: Cleveland Botanical

Gardens7:00 – 9:15 a.m.


7:00 a.m. – 6:00 p.m.

Scientific Sessions8:00 – 9:15 a.m.

Plenary Session9:30 – 11:30 a.m.


POD Talks2:30 – 3:30 p.m.

Plant Health Hub Networking Break 2:30 – 5:00 p.m.

Poster Viewing with Authors Present

3:00 – 5:00 p.m.

Idea Cafés4:00 – 5:00 p.m.

One-to-One Conversations with an

Expert4:00 – 5:00 p.m.

Early Career Professionals Social

with Employer Networking Opportunity

6:00 – 7:00 p.m.

Graduate Student Social

6:00 – 7:00 p.m.

Industry and Extension Social

6:30 – 9:30 p.m.

Committee for Diversity and Equality Workshop

7:00 – 8:30 p.m.

Discovery Walk: The Ohio City Farm

7:45 – 10:00 a.m.


8:00 – 6:00 p.m.


Lunch Break11:30 a.m. – 1:00 p.m.


POD Talks2:30 – 3:30 p.m.

Plant Health Hub Networking Break 2:30 – 5:00 p.m.

Poster Viewing with Authors Present

3:00 – 5:00 p.m.

Idea Cafés4:00 – 5:00 p.m.

One-to-One Conversations with an

Expert4:00 – 5:00 p.m.

North Central Division Awards Event

5:15 – 6:30pm

LGBTQA Social and Networking Hour6:00 – 7:00 p.m.

Cleveland Rocks! Celebration Night 7:30 – 10:30 p.m.


7:00 – 11:00 a.m.


Plant Health Hub Networking Break9:15 – 10:30 a.m.

Idea Cafés9:30 – 10:30 a.m.

Closing General Session10:45 a.m. – 12:00 p.m.

APS Council Meeting12:00 – 3:00 p.m.

Saturday Sunday Monday Tuesday Wednesday



Help us train a generation of scientists and

advisors that will feed the world!

Donate!Volunteer! Advocate!

See us at the APS

Foundation Booth or

Foundation Scholars

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Daily Schedule of Meetings and Scientific Sessions

All events take place in the Huntington Convention Center unless otherwise noted. Some small, selected meetings take place at the Hilton Cleveland Downtown and are noted as such (Hilton).

All field trips depart from the Lakeside Entrance (300 Lakeside Ave.) of the Huntington Convention Center.

SATURDAY, AUGUST 3

8:00 a.m. – 12:00 p.m. WORKSHOP: Intro to R for Plant Pathologists* Room 108:00 a.m. – 12:00 p.m. WORKSHOP: Modeling Tools and Techniques Using R* Room 158:00 a.m. – 4:00 p.m. FIELD TRIP: A Midwestern Fungal and Plant Pathology Foray* Offsite 8:00 a.m. – 5:00 p.m. WORKSHOP: Effector Visualization: Teaching and Research Tools for Studying

Pathogen Effectors During Infection* Offsite8:00 a.m. – 5:00 p.m. FIELD TRIP: Discovering Ohio’s Ornamental Heritage: From Research, to Farm, to Table* Sponsored by Agdia, Inc. Offsite 8:00 a.m. – 5:00 p.m. WORKSHOP: The Plant Root System: Gateway to Plant-Beneficial Rhizosphere

Microbiome Interactions* Room 128:00 a.m. – 5:00 p.m. FIELD TRIP: Existing and Emerging Forest Health Challenges in the Great Lakes Region* Offsite 8:30 a.m. – 4:30 p.m. WORKSHOP: Leadership Institute: Next-Generation Leadership Essentials:

Developing Effective Leadership Skills for All Levels*—Sponsored by Bayer Room 98:30 a.m. – 4:30 p.m. AAFC/ARS High-Risk Pathogen Committee Meeting Room 1410:00 a.m. – 12:00 p.m. APS Publications Board Meeting Room 19 1:00 – 4:00 p.m. WORKSHOP: Pitch120: Honing Scientific Communication Skills for a Broader Audience* Room 131:00 – 5:00 p.m. WORKSHOP: Get Your Research Project Organized, Shareable and Reproducible

Using R and Other Open Source Tools* Room 101:00 – 5:00 p.m. WORKSHOP: Bioinformatics Basics: Teaching Bioinformatics to Undergraduates

and Novices* Supported by Valent USA LLC Room 151:00 – 5:00 p.m. WORKSHOP: Mixed Models for Data Analysis in Plant Pathology* Room 161:00 – 5:00 p.m. North American Fungicide Resistance Action Committee (NA-FRAC) Meeting—By invitation Room 222:00 – 4:00 p.m. WORKSHOP: APS Journals—Reviewing a Manuscript 101* Room 113:00 – 4:30 p.m. APS Committee Chair/Vice Chair Orientation Center Street B/C, Hilton3:00 – 4:30 p.m. APS PRESS Board Meeting Room 194:30 – 5:30 p.m. First-Timers Orientation Center Street B/C, Hilton5:00 – 6:00 p.m. PDMR Editors Meeting Room 195:00 – 6:00 p.m. Microbial Forensics Interest Group Meeting Room 215:30 – 6:00 p.m. Science Ambassador Program Center Street B/C, Hilton5:30 – 6:00 p.m. Undergraduate Student Primer Center Street A, Hilton6:00 – 7:00 p.m. APS Committee Meetings Bacteriology Committee Meeting Room 9 Biotechnology Committee Meeting Room 10 Chemical Control Committee Meeting Room 11 Crop Loss Assessment and Risk Evaluation (CLARE) Committee Meeting Room 12 Diseases of Ornamental Plants Committee Meeting Room 13 Molecular and Cellular Phytopathology Committee Meeting Room 14 Mycology Committee Meeting Room 21 Nematology Committee Meeting Room 22 Plant Pathogen and Disease Detection Committee Meeting Room 15 Teaching Committee Meeting Room 16 Vector-Pathogen Complexes Committee Meeting Room 19

Saturday

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7:15 – 8:15 p.m. APS Committee Meetings Committee for Diversity and Equality Meeting Room 9 Diagnostics Committee Meeting Room 10 Emerging Diseases and Pathogens Committee Meeting Room 11 Evolutionary Genetics and Genomics Committee Meeting Room 12 Forest Pathology Committee Meeting Room 13 Graduate Student Committee Meeting Room 14 Integrated Plant Disease Management Committee Meeting Room 21 Mycotoxicology Committee Meeting Room 22 Phyllosphere Microbiology Committee Meeting Room 15 Postharvest Pathology Committee Meeting Room 19 Soil Microbiology Committee Meeting Room 25A/B Tropical Plant Pathology Committee Meeting Room 168:30 – 9:30 p.m. APS Committee Meetings Biological Control Committee Meeting Room 9 Collections and Germplasm Committee Meeting Room 10 Epidemiology Committee Meeting Room 11 Extension Committee Meeting Room 12 Host Resistance Committee Meeting Room 13 Industry Committee Meeting Room 14 Pathogen Resistance Committee Meeting Room 15 Regulatory Plant Pathology Committee Meeting Room 22 Seed Pathology Committee Meeting Room 19 Turfgrass Pathology Committee Meeting Room 16 Virology Committee Meeting Room 21

* Preregistration and ticket required.

Sow, Know, and Grow

Notes

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SUNDAY, AUGUST 4

7:00 – 9:00 a.m. APS Education Center Editorial Board Meeting Room 107:00 – 9:00 a.m. Vegetable Seed Industry Breakfast—By invitation Room 97:30 a.m. – 6:00 p.m. Registration Open Hall C8:00 – 9:00 a.m. APS Phytopathology Senior Editors Meeting Room 228:00 – 9:00 a.m. Plant Health Progress Editorial Board Meeting—By invitation Room 198:00 – 9:00 a.m. APS Plant Disease Senior Editors Meeting Room 218:00 – 10:00 a.m. Poster Set-Up (Session 1) Hall C8:00 a.m. – 2:00 p.m. Exhibitor Set-Up Hall C8:30 – 9:00 a.m. Moderator Orientation Room 26A9:00 – 10:00 a.m. APS Plant Disease Editorial Board Meeting Room 219:00 – 10:00 a.m. APS Phytopathology Editorial Board Meeting Room 2210:00 – 11:30 a.m. Opening General Session—Award of Distinction, Fellows, & Keynote Speaker Grand Ballroom A/B11:30 a.m. – 1:00 p.m. Lunch Break 11:30 a.m. – 1:30 p.m. Division Officers Luncheon Room 101:00 – 2:15 p.m. HOT TOPIC: Insights into Key Federal Funding Opportunities for Plant Pathologists—Panel Discussion Room 26B/C1:00 – 2:15 p.m. SPECIAL SESSION: STEM Mentoring Fuels the Next Generation of Scientists—Panel Discussion Room 161:00 – 2:15 p.m. SPECIAL SESSION: The Promise and Limitations of SDHI Fungicides—Panel Discussion—Supported by Bayer Room 25C1:00 – 2:15 p.m. TECHNICAL SESSION: Management of Soilborne Pathogens Room 151:00 – 2:15 p.m. TECHNICAL SESSION: Virus Discovery and Virus Populations Room 25A/B1:00 – 3:30 p.m. SPECIAL SESSION: Schroth—Faces of the Future Session: Mycology Room 26A1:00 – 4:00 p.m. WORKSHOP: Rapid and Simple Plant Health Diagnostics Using LAMP Isothermal Amplification—Sponsored by OptiGene Room 11 1:30 – 3:00 p.m. APS 2026 Professional Development Forum Meeting—By invitation Room 192:00 – 3:00 p.m. PMN Working Group Room 222:45 – 4:00 p.m. SPECIAL SESSION: Host-Pathogen Interactions at the Plant Surface Room 26B/C2:45 – 4:00 p.m. SPECIAL SESSION: Validation of High Throughput Sequencing: From Virus Detection to Plant Certification Room 25A/B2:45 – 4:00 p.m. TECHNICAL SESSION: Characterization of Crop-Associated Microbiome Room 152:45 – 4:00 p.m. TECHNICAL SESSION: Enhancing the Biological Control of Bacterial Plant Diseases Room 25C2:45 – 4:00 p.m. TECHNICAL SESSION: Predictive Disease Modeling Room 164:00 – 7:00 p.m. Plant Health Hub Open Hall C

4:00 – 6:00 p.m. Welcome Reception Network with ExhibitorsAPS PRESS Bookstore Open

4:00 – 6:00 p.m. Pitch120 Event4:00 – 7:00 p.m. Poster Viewing Hours (Session 1) 6:00 – 7:00 p.m. University Alumni Networking Events

Colorado State UniversityCornell UniversityLouisiana State UniversityNorth Carolina State UniversityThe Ohio State UniversityUniversity of GeorgiaUniversity of MinnesotaWashington State University

6:00 – 7:00 p.m. APS Public Policy Board (PPB) Meeting—By invitation Room 197:00 – 9:00 p.m. APS Public Policy Board (PPB) Meeting—Open to all Meeting Attendees; Supported by Bayer Room 197:00 – 10:00 p.m. Ornamental Virus Discussion Group Room 14

Daily Schedule of Meetings and Scientific Sessions Sunday

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OPENING GENERAL SESSION—AWARD OF DISTINCTION, FELLOWS, & KEYNOTE SPEAKER10:00 – 11:30 a.m.; Grand Ballroom A/B

The Surprising Science of Mushrooms—My Journey into This Dark but Wonderful World Jude Wilson, Monaghan Biosciences Limited, Monaghan, Ireland

Dr. Jude Wilson is the chief scientific officer at MBio, a fungal biotechnology company based in the border region of Ireland. Twenty years ago, she wanted to save the Third World from parasitic disease after being inspired by a professor of tropical medicine. Now, after several moves between academia and industry (including a stint as a post-doc in the United States), she leads a team of more than 50 industrial scientists focused on improving the quality and nutritional benefits of the white button mushroom. In this presentation, Jude will highlight the key decisions and moves that led to her attempt to save the world with mushrooms.

HOT TOPIC: Insights into Key Federal Funding Opportunities for Plant Pathologists—Panel Discussion 1:00 – 2:15 p.m.; Room 26B/C Organizers: Rubella Goswami, USDA NIFA, Washington, DC, U.S.A.Panelists: • E. LICHENS-PARK, USDA NIFA, Washington, DC, U.S.A. • C. ORTIZ, USDA NIFA, Washington, DC, U.S.A. • C. BULL, The Pennsylvania State University, University Park, PA, U.S.A. • R. GOSWAMI, USDA NIFA, Washington, DC, U.S.A.

PLANT HEALTH HUB WELCOME RECEPTION4:00 – 6:00 p.m.; Hall CJoin your colleagues at the Plant Heath 2019 Welcome Reception for a time of informal networking, catching up, and meeting new faces. Held in the Plant Health Hub, the reception provides a great time to check out the APS PRESS bookstore, view the poster presentations, and network with exhibitors. We’re looking forward to kicking off Plant Health 2019 with you!

HOTTOPIC

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Sunday Program Highlights

Sow, Know, and Grow

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Session content listed in the program is as submitted by the author/presenter and has not been edited.

SPECIAL SESSION: STEM Mentoring Fuels the Next Generation of Scientists—Panel Discussion 1:00 – 2:15 p.m.; Room 16 Organizer: Abbie Stack, Bayer CropScience, Woodland, CA, U.S.A. Moderator: Abbie Stack, Bayer CropScience, Woodland, CA, U.S.A.Section: Professionalism/Outreach Sponsoring Committees: Early Career Professional Committee, OPRO

• Sharing the Importance of Agriculture Research with Students, Teachers, and Beyond. F. HARDIN, Noble Research Institute, LLC, Ardmore, OK, U.S.A. • Adopting Post-Harvest Diseases into Inquiry-Based Online STEM Modules for the Next Generation of Plant Pathologists. R. L. HIRSCH, University of Kentucky, Lexington, KY, U.S.A. • STEM Outreach at the Cleveland Museum of Natural History. L. GAMBOL, Cleveland Museum of Natural History, Cleveland, OH, U.S.A. • The APS and Planting Science Partnership. J. E. CREASAP GEE, Botanical Society of America, St. Louis, MO, U.S.A.

SPECIAL SESSION: The Promise and Limitations of SDHI Fungicides—Panel Discussion 1:00 – 2:15 p.m.; Room 25C With financial support from BASF and Bayer CropScience Organizers: Guido Schnabel, Clemson University, Clemson, SC, U.S.A. Moderators: Mohamed Khan, North Dakota State University and University of Minnesota, Fargo, ND, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Chemical Control Committee, Turfgrass Committee, Postharvest Committee, Fungicide Resistance Committee, IPM Committee

• Rise of SDHIs and Current Status of Resistance Development. G. STAMMLER, BASF SE, Limburgerhof, GERMANY • The Use of SDHI Fungicides in Premixtures: Successes and Concerns. G. SCHNABEL, Clemson University, Clemson, SC, U.S.A. • Assessing the Risk of Resistance Towards SDHI Fungicides in France. S. WALKER, INRA Bioger, Thiverval-Grignon, FRANCE • Discussion

TECHNICAL SESSION: Management of Soilborne Pathogens 1:00 – 2:15 p.m.; Room 15

1:00 Anaerobic Soil Disinfestation: Manipulating the Florida Soil MicrobiomeJ. C. HONG, USDA ARS, United States Horticultural Research Laboratory, Fort Pierce, FL, U.S.A.

1:15 Improving Sting Nematode Management in North Carolina by Investigation Nematicide Application TimingG. GALLE, North Carolina State University, Raleigh, NC, U.S.A.

1:30 Evaluation of Sweetpotato Germplasm for Resistance to Pathotypically Diverse Isolates of Meloidogyne enterolobii from the Southeastern United States W. B. RUTTER, USDA ARS, Charleston, SC, U.S.A.1:45 Effect of Anaerobic Digestates on the Suppression of Plant-Parasitic Nematodes: Do the Substrate and the Digestion Process Influence the Effect?

C. EBERLEIN, University of California, Riverside, Department of Nematology, Parlier, CA, U.S.A.2:00 Soil Treatment Options for Nursery Applications Against Plant-Parasitic Nematodes

A. WESTPHAL, University of California, Riverside, Department of Nematology, Parlier, CA, U.S.A.

TECHNICAL SESSION: Virus Discovery and Virus Populations 1:00 – 2:15 p.m.; Room 25A/B

1:00 The Use of High-Throughput Sequencing for Detection and Characterization of Diverse Viruses Infecting Common Beans (Phaseolus vulgaris L.) in Zambia

R. M. MULENGA, Zambia Agriculture Research Institute, Lusaka, ZAMBIA

Scientific Sessions

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1:15 Impact of Developmental Growth on Intra-Host Evolution of Plum Pox Viral Quasispecies in Perennial HostY. TAMUKONG, University of Maryland, College Park, College Park, MD, U.S.A.

1:30 Identification of a New Member of the Family Phenuiviridae, Order Bunyavirales, Associated with Lettuce Dieback Disease

W. M. WINTERMANTEL, USDA ARS, Salinas, CA, U.S.A.1:45 The Phytovirome: Viral Communities in Soil and Plants

J. EMERSON, University of California, Davis, Davis, CA, U.S.A.2:00 Surveys for Asian Citrus Psyllid (Diaphorina citri)-Infecting Viruses and ‘Candidatus Liberibacter asiaticus’ (CLas) Dispersal in Florida Citrus Groves

K. BRITT, University of Florida, Immokalee, FL, U.S.A.

SPECIAL SESSION: Schroth—Faces of the Future Session: Mycology 1:00 – 3:30 p.m.; Room 26A Organizers: Alejandra I. Huerta, Colorado State University, Fort Collins, CO, U.S.A.; Jacqueline Joshua, Bayer, Chesterfield, MO, U.S.A.; Abbie Stack, Bayer CropScience, Woodland, CA, U.S.A. Moderator: Alejandra I. Huerta, Colorado State University, Fort Collins, CO, U.S.A.Section: Biology and Disease Management

• Characterization of Early Phytophthora infestans Infection in Potato with Aerial, Field-Based Hyperspectral Imaging. K. M. GOLD, University of Wisconsin-Madison, Madison, WI, U.S.A. • Harnessing New Technologies to Improve Management of Cucurbit Downy Mildew. L. M. QUESADA, North Carolina State University, Raleigh, NC, U.S.A. • Fusarium Wilt of Cotton in Alabama. J. J. COLEMAN, Auburn University, Auburn, AL, U.S.A. WORKSHOP: Rapid and Simple Plant Health Diagnostics using LAMP Isothermal Amplification1:00 – 4:00 p.m.; Room 11

Organizers: Michael Andreou, OptiGene, Horsham UNITED KINGDOM; Duncan Clark, OptiGene Limited, Horsham, UNITED KINGDOMSponsored by OptiGene

Workshop overview: • Overview of isothermal amplification of DNA and, specifically, the LAMP method • Reasons for using LAMP to detect plant diseases and to identify pests • Designing and validating a LAMP assay • Instrumentation and reagents for LAMP testing from OptiGene • Practical application of LAMP testing for in-field screening • Hands-on running of a LAMP assay by all attendees

SPECIAL SESSION: Host-Pathogen Interactions at the Plant Surface 2:45 – 4:00 p.m.; Room 26B/C Organizers: Ye Xia, The Ohio State University, Columbus, OH, U.S.A.; Shuxian Li, USDA ARS CGRU, Stoneville, MS, U.S.A. Moderators: Ye Xia, The Ohio State University, Columbus, OH, U.S.A.; Shuxian Li, USDA ARS CGRU, Stoneville, MS, U.S.A.Section: Molecular and Cellular Plant-Microbe Interactions

• The Role of Plant Cuticle in Defense Against Diverse Pathogens. Y. XIA, The Ohio State University, Columbus, OH, U.S.A. • Stomata-Mediated Plant Immune Response Against Microbe Invasion. M. MELOTTO, University of California, Davis, Davis, CA, U.S.A. • Bacterial Pathogen Targets Blue Light Receptors to Suppress Plant Immunity. G. LI, University of Nebraska, Lincoln, NE, U.S.A. • Cuticular Signaling in Systemic Immunity. KACHROO PHD, University of Kentucky, Lexington, KY, U.S.A. • The First Line of Defense—Cell Walls in Plant Immunity. G. BETHKE, University of Minnesota, Twin Cities, St. Paul, MN, U.S.A. • Light-Dependent Sensory Networks Regulate Pre-Penetration Infectious Development in Cercospora zeae-maydis. H. BLUHM, University of Arkansas, Fayetteville, AR, U.S.A.

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SPECIAL SESSION: Validation of High Throughput Sequencing: From Virus Detection to Plant Certification 2:45 – 4:00 p.m.; Room 25A/B With financial support from APS Widely Prevalent Virus Committee and Bayer Crop Science Organizers: Dimitre S. Mollov, USDA, Beltsville, MD, U.S.A.; Ioannis E. Tzanetakis, University of Arkansas,Fayetteville, AR, U.S.A. Moderator: Dimitre S. Mollov, USDA, Beltsville, MD, U.S.A.Section: Diseases of Plants Sponsoring Committees: Virology Committee, Diagnostics Committee, APS/APHIS Widely Prevalent Virus Committee, Emerging Diseases and Pathogens Committee

• High Throughput Sequencing for Plant Certification and Expedited Release of Quarantined Propagative Plant Material. M. AL RWAHNIH PHD, University of California, Davis, Davis, CA, U.S.A. • Application of HTS for Viral Diagnostics in the USDA-APHIS Poaceae Quarantine Program. M. M. MALAPI- WIGHT, USDA APHIS Plant Germplasm Quarantine Program, Beltsville, MD, U.S.A. • Elucidating the Virome Diversity of Grapevine Using High-Throughput Sequencing Approaches. V. I. MALIOGKA, Aristotle University of Thessaloniki, Thessaloniki, GREECE • High Throughput Sequencing for Clean Plant Certification in Practice. T. HO, Driscoll’s, Inc., Watsonville, CA, U.S.A. • Applications of HTS for Enhanced Pathogen Detection: A Vegetable Industry Perspective. A. STACK, Bayer CropScience, Woodland, CA, U.S.A.

TECHNICAL SESSION: Characterization of Crop-Associated Microbiome 2:45 – 4:00 p.m.; Room 15

2:45 Crop Rotation Sequences Affect Subsequent Soybean Yield, Soil Microbiome, Root Microbiome, and Soil HealthS. Y. L. MARZANO, South Dakota State University, Brookings, SD, U.S.A.

3:00 Cultivar and Environment Influence on Epiphytic Bacterial Diversity on Wheat SeedsM. NAMPIJJA, South Dakota State University, Brookings, SD, U.S.A.

3:15 Transmission and Functional Role of Carrot Endophyte CommunitiesS. ABDELRAZER, Purdue University, West Lafayette, IN, U.S.A.

3:30 Association Between Soil and Root Microbiomes and Within-Farm-Spatial-Variation of Soybean Yields: II. The Fungal Perspective.

A. Y. BANDARA, The Pennsylvania State University, University Park, PA, U.S.A.3:45 The Influence of Crop Production Practices and Temperature on the Abundance of Pythium and Phytophthora in Soybean

K. NAVARRO, The Ohio State University, Wooster, OH, U.S.A.

TECHNICAL SESSION: Enhancing the Biological Control of Bacterial Plant Diseases 2:45 – 4:00 p.m.; Room 25C

2:45 Predicting the Impact of Root-Associated Bacterial Endophytes Through In Vitro Functional CharacterizationT. TRAN, Purdue University, West Lafayette, IN, U.S.A.

3:00 Examining the Effectiveness of In Vitro and In Planta Assay in Assessing Biocontrol Activity of Pseudomonas Strains Against Agrobacterium rhizogenes

C. CHAGAS DE FREITAS, The Ohio State University, Wooster, OH, U.S.A.3:15 When Is Pseudomonas syringae Bacteriocin Production Beneficial?

H. EHAU-TAUMAUNU, The Pennsylvania State University, State College, PA, U.S.A.3:30 Stronger Together: Coculture Screen for Specialized Metabolites in the Rhizosphere

N. ECKSHTAIN-LEVI, University of North Carolina at Chapel Hill, Chapel Hill, NC, U.S.A.3:45 Development of Novel Diagnostic and Management Tools for Citrus Greening Using Peptidomics

M. HECK, USDA ARS, Emerging Pest and Pathogen Research Unit, Ithaca, NY, U.S.A.

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TECHNICAL SESSION: Predictive Disease Modeling 2:45 – 4:00 p.m.; Room 16

2:45 Weather-Based Epidemiological Models for Alternaria Blight of Oilseed Brassicas in IndiaM. S. YADAV, ICAR-National Research Centre on Integrated Pest Management, New Delhi, INDIA

3:00 Big Data Solutions for Smallholder Farmers in Southeast Asia: Machine Learning for Real-Time Forecasting of Cassava Mosaic Disease RiskK. F. ANDERSEN, University of Florida, Gainesville, FL, U.S.A.

3:15 Role of avrBsT in Dispersal of Xanthomonas perforans and Severity of Bacterial Spot of TomatoA. SHARMA, University of Florida, Gainesville, FL, U.S.A.

3:30 Modeling Vector Behavioral Thermoregulation as an Effect on Epidemic DynamicsT. CHAPPELL, Texas A&M University, College Station, TX, U.S.A.

3:45 Pre and Post Silk Emergence Weather Variables Associated with Gibberella ear rot and Deoxynivalenol in CornF. DALLA LANA, The Ohio State University, Wooster, OH, U.S.A.

Thank you, APS Members!

APS members shape the future of the plant health profession and protect plant health across the world. APS would not be what it is without the generous support and volunteer hours of our members. Thank you.

What have you learned?

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The Discovery Walk will depart from the Lakeside Entrance (300 Lakeside Ave.) of the Huntington Convention Center.

MONDAY, AUGUST 5

6:30 – 8:00 a.m. Extension Plant Pathologists Breakfast* Room 97:00 – 9:00 a.m. Office of Public Relations & Outreach (OPRO) Board Meeting Room 197:00 – 9:15 a.m. Discovery Walk: Cleveland Botanical Gardens* Offsite 7:00 a.m. – 6:00 p.m. Plant Health Hub Open Hall C7:00 a.m. – 6:00 p.m. Registration Open Hall C7:00 a.m. – 6:00 p.m. Poster Viewing Hours (Session 1) Hall C8:00 – 9:15 a.m. SPECIAL SESSION: Impact of Environmental Changes on Nematode Communities and Soil Health—Supported by Bayer Room 26A8:00 – 9:15 a.m. SPECIAL SESSION: Replicability in Plant Pathology: Do We Have a Problem?—Panel Discussion Room 26B/C8:00 – 9:15 a.m. TECHNICAL SESSION: Antiviral Defense Mechanisms Room 25A/B8:00 – 9:15 a.m. TECHNICAL SESSION: Chemical Control of Fungal Diseases Room 25C8:00 – 9:15 a.m. TECHNICAL SESSION: Plant Science Outreach and Education Room 168:00 – 9:15 a.m. TECHNICAL SESSION: Tree Pathology Room 158:30 a.m. – 6:00 p.m. APS PRESS Bookstore Open Hall C9:30 – 11:30 a.m. Plenary Session & Awards Grand Ballroom A/B11:30 a.m. – 1:00 p.m. Lunch Break11:30 a.m. – 1:00 p.m. Graduate Student & Industry Lunch*—Supported by Bayer Hall C11:30 a.m. – 1:00 p.m. Network with Exhibitors Hall C 11:30 a.m. – 1:00 p.m. Widely Prevalent Fungi Committee Meeting Room 2112:00 p.m. – 1:00 p.m. Widely Prevalent Virus Committee Meeting Room 2211:30 a.m. – 1:30 p.m. Storkan-Hanes-McCaslin Research Foundation Luncheon—By invitation Room 1311:30 a.m. – 6:00 p.m. OIP Silent Auction Hall C12:00 – 1:00 p.m. USDA/ARS Meeting—Brown bag lunch Room 91:00 – 2:15 p.m. SPECIAL SESSION: Beneficial Microbes: From Isolation to Product Registration and the Regulatory Process—Supported by AgBiome Room 25A/B1:00 – 2:15 p.m. SPECIAL SESSION: Current Trends and Directions in CRISPR/Cas9 Technology for Filamentous Fungi and Oomycetes Room 26B/C1:00 – 2:15 p.m. SPECIAL SESSION: Pathogen Adaptation to the Plant Vascular System Room 26A1:00 – 2:15 p.m. SPECIAL SESSION: Plant Pathologists of the Future: Showcasing Graduate Student Presentation Winners from APS Division Meetings Room 15 1:00 – 2:15 p.m. TECHNICAL SESSION: Epidemic Analysis Room 25C1:30 – 2:30 p.m. APS-IPS Working Group Meeting—By invitation Room 212:30 – 3:30 p.m. POD Talks Hall C2:30 – 3:30 p.m. APS-SBF Working Group Meeting—By invitation Room 222:30 – 5:00 p.m. Plant Health Hub Networking Break Hall C2:30 – 6:00 p.m. Network with Exhibitors Hall C3:00 – 4:00 p.m. Poster Viewing with Authors Present (Session 1, Odds) Hall C3:30 – 5:00 p.m. APS Divisional Forum Room 213:30 – 5:00 p.m. Office of Education (OE) Meeting Room 194:00 – 5:00 p.m. Poster Viewing with Authors Present (Session 1, Evens) Hall C4:00 – 5:00 p.m. Idea Cafés Hall C4:00 – 5:00 p.m. One-to-One Conversations with an Expert Hall C5:30 – 6:00 p.m. Early Career Professionals Committee Meeting Room 136:00 – 7:00 p.m. Early Career Professionals Social with Employer Networking Opportunity*—Supported by Bayer TBA6:00 – 7:00 p.m. Publications Senior Editors Reception—By invitation TBA6:00 – 7:00 p.m. Graduate Student Social*—Supported by Bayer TBA6:00 – 7:00 p.m. Poster Take-Down (Session 1) Hall C6:30 – 9:30 p.m. Industry and Extension Social*—Supported by Bayer & Sakata Seed America Punch Bowl Social (offsite)7:00 – 8:30 p.m. Committee for Diversity and Equality Workshop—Supported by Bayer Room 13

* Preregistration and ticket required.

Daily Schedule of Meetings and Scientific Sessions Monday

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Monday Program Highlights

DISCOVERY WALK: CLEVELAND BOTANICAL GARDENS7:00 – 9:15 a.m.; Bus departs from Huntington Convention Center

Take a walk through the Eleanor Armstrong Smith Glasshouse and escape to the fantastic spiny desert of Madagascar and the butterfly-filled rainforest of Costa Rica. The walk will be led by horticulturists and cover disease management and plant propagation.

PLENARY SESSION AND AWARDS9:30 – 11:30 a.m.; Grand Ballroom A/B

In the Field: Boots on the Ground Speaker: Boyd Padgett, Louisiana State University, Alexandria, LA, U.S.A.

Good Habits with Big Data Speaker: Hilary Parker, Stitch Fix, San Francisco, CA, U.S.A.

The American Chestnut, Using the Tools of Biotechnology to Help Rescue a Keystone Tree Species Speaker: William Powell, State University of New York, Syracuse, NY, U.S.A.

PHYTOPATHOLOGISTS OF DISTINCTION (POD) TALKS 2:30 – 3:30 p.m.; Hall C

A Team Approach to Solving Disease Problems for Growers Mary Hausbeck, Plant Pathology Department, Michigan State University, East Lansing, MI, U.S.A.

As an extension plant pathologist, I’ve taken the approach of serving my mission and industries by establishing partnerships and collaborations with a wide range of individuals and agencies. Establishing a network among growers, extension educators, field scouts, registrants, IR-4, EPA, plant pathologists, molecular biologists, plant breeders, horticulturalists, entomologists, and others is a key strategy that has helped deliver answers and solutions in response to complex disease problems. Engaging undergraduate and graduate students and introducing them to this network increases their job readiness by providing the professional skill set needed to excel in an increasingly challenging career environment.

Plant Health at Home and Abroad: Science + Outreach = Making a Difference Sally Miller, College of Food, Agricultural and Environmental Sciences, Department of Plant Pathology, The Ohio State University, Wooster, OH, U.S.A.

As a child, I had almost free reign to explore the woods and open spaces surrounding my Ohio home and was driven bymy curiosity about the natural world and a certain sense of adventure. I majored in biology at OSU and went on to graduate school in plant pathology at UW-Madison. My first job, in a biotech company, led me to my first experience with a tropical disease: banana black sigatoka in Costa Rica. The bigger and more challenging adventures started a few years after joining OSU in vegetable pathology. I signed on to a USAID IPM CRSP project in the Philippines in 1995,beginning 20-plus years of collaborative research and development focusing on vegetable crop IPM and diagnostics in Asia, Africa, Central America, and Eastern Europe. We developed practical solutions for invasive and endemic pests and diseases that directly improved families’ income and food security—a really gratifying experience.

4:00 – 5:00 p.m.; Hall CJoin your colleagues in the following roundtable discussions, located near the entrance of the Plant Health Hub. Topics as of June 1, 2019. Visit the mobile app or the Plant Health 2019 website for additional topics held during this time slot. • How to be an Ally/Mentor/Role Model to new Minority Scholars • Career Development for Post-Doctoral Fellows • Frontier Approaches to Biocontrol of Insect Pests, Plant, and Foodborne Pathogens • Plant Virus Taxonomy in the 21st Century • Replicability: A Conversation About the Ongoing “Crisis in Science” • The New Plant Science Decadal Vision and Why It Is Relevant to Us

Idea Café

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SPECIAL SESSION: Impact of Environmental Changes on Nematode Communities and Soil Health 8:00 – 9:15 a.m.; Room 26A With financial support from Bayer CropScience Organizers: Jiue-in Yang, National Taiwan University, Taipei City, TAIWAN; Guiping Yan, North Dakota State University, Department of Plant Pathology, Fargo, ND, U.S.A.; Qianwei Jiang, Monsanto Company, Woodland, CA, U.S.A. Moderator: Guiping Yan, North Dakota State University, Department of Plant Pathology, Fargo, ND, U.S.A.Section: Biology and Disease Management Sponsoring Committees: APS Nematology Committee

• Changing Ecosystems—Plant Succession Effects on Soil Diversity and Function. D. PORAZINSKA, Entomology and Nematology, University of Florida, Gainesville, FL, U.S.A. • Cropping System Practices on Nematode Communities and Soil Health. M. QUINTANILLA, Michigan State University, Entomology Department, East Lansing, MI, U.S.A. • Deciphering Evidence of Plant Parasitic Nematode Dispersal and Biogeographic Patterns Derived from DNA Barcoding. T. O. POWERS, University of Nebraska, Lincoln, NE, U.S.A.

SPECIAL SESSION: Replicability in Plant Pathology: Do We Have a Problem?—Panel Discussion 8:00 – 9:15 a.m.; Room 26B/C Organizers: Felipe Dalla Lana, The Ohio State University, Wooster, OH, U.S.A.; Laurence V. Madden, The Ohio State University, Wooster, OH, U.S.A. Moderators: Felipe Dalla Lana, The Ohio State University, Wooster, OH, U.S.A.; Laurence V. Madden, The Ohio State University, Wooster, OH, U.S.A.Section: Epidemiology Sponsoring Committees: Crop Loss Assessment and Risk Evaluation (CLARE) Committee, Epidemiology Committee

• Replicability in Science: Concept and Status. F. DALLA LANA, The Ohio State University, Wooster, OH, U.S.A. • The Role of P-Values, Power, and Meta-Analysis When Thinking about Replicability in Science. L. V. MADDEN, The Ohio State University, Wooster, OH, U.S.A. • Experimental Design and Strategies to Increase Replicability in Plant Pathology. B. KRISS, Syngenta, Greensboro, NC, U.S.A. • “Things’ll aye be some way”: Sampling Spaces and Repeatability in Plant Pathology. N. McROBERTS, University of California, Davis, Davis, CA, U.S.A.

TECHNICAL SESSION: Antiviral Defense Mechanisms 8:00 – 9:15 a.m.; Room 25A/B

8:00 Transcriptional Regulation of miR528 by OsSPL9 Orchestrates Antiviral Response in RiceY. LI, School of Life Sciences, Peking University, Beijing, CHINA

8:15 Dissecting the Molecular Basis of Strain- and Temperature-Sensitivity to PVY Conferred by the Potato Nytbr Resistance GeneD. A. HALTERMAN, USDA ARS, Madison, WI, U.S.A.

8:30 Citrus Miraculin-Like Protein Hijacks Viral Movement-Associated Protein to Facilitate Defense Against Citrus tristeza virus Y. D. SUN, Department of Plant Pathology, University of Florida, Gainesville, FL, U.S.A.; Plant Molecular and Cellular Biology Program, Gainesville, FL, U.S.A.

8:45 Development of a Genetic Strategy for Dual Resistance Towards Wheat streak mosaic virus and Triticum mosaic virus in WheatS. TATINENI, USDA ARS, University of Nebraska, Lincoln, NE, U.S.A.

9:00 Deciphering Early Transcriptome Changes During Sw-5 NLR Immune Receptor-Mediated Resistance to TSWVN. ORDAZ, University of California, Davis, Davis, CA, U.S.A.

TECHNICAL SESSION: Chemical Control of Fungal Diseases 8:00 – 9:15 a.m.; Room 25C

8:00 The Role of Multi-Site Fungicides for Controlling Cercospora beticola and Managing Fungicide ResistanceM. F. R. KHAN, North Dakota State University and University of Minnesota, Fargo, ND, U.S.A.

Scientific Sessions

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8:15 Fungicide Sensitivity Screening for Corynespora cassiicola and Field EvaluationsT. SMITH, University of Tennessee, Jackson, TN, U.S.A.

8:30 Number of Applications and Application Date Affect Phosphonate Residue in Nutmeats of PecanC. H. BOCK, USDA ARS, Southeastern Fruit and Tree Nut Research Laboratory, Byron, GA, U.S.A.

8:45 Improved Management Efficacy of Late Leaf Spot on Peanut Through Combined Application of Prothioconazole with Fluxapyroxad and PyraclostrobinD. J. ANCO, Clemson University, Blackville, SC, U.S.A.

9:00 Effectiveness of Fungicide Programs Against Turfgrass Fungal Disease Leaf and Sheath Spot (Mini Ring) on Bermuda Grass in Hawaii.Z. CHENG, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

TECHNICAL SESSION: Plant Science Outreach and Education 8:00 – 9:15 a.m.; Room 16

8:00 Nationwide Assessment of Leadership Development for Graduate Students in Agricultural Plant SciencesK. FERREIRA DA SILVA, University of Nebraska–Lincoln, Lincoln, NE, U.S.A.

8:15 A Group Plot Experiment to Incorporate Agricultural Field Research Training into Summer Undergraduate InternshipsL. R. TRIPLETT, Connecticut Agricultural Experiment Station, New Haven, CT, U.S.A.

8:30 The “Fungal Selfie”: Integrating a Social Media Collection in Higher Education CoursesE. C. WALLACE, Penn State University, University Park, PA, U.S.A.

8:45 Assessing Systemic Interventions in Combating the Spread Fall Army Worm (Spodoptera frugiperda): Lessons Learned in Tanzania and GhanaJ. HIMMELSTEIN, ACDI/VOCA, Washington, DC, U.S.A.

TECHNICAL SESSION: Tree Pathology 8:00 – 9:15 a.m.; Room 15

8:00 Elucidating the Phoretic Blue-Stain Fungal Community of Root-Feeding Beetles in Georgia Using a Metabarcoding ApproachM. BULAND, D. B. Warnell School of Forestry, University of Georgia, Athens, GA, U.S.A.

8:15 Endophytes and Tree Health: Disease Anatomy and Microbial Ecology of the Neonectria ditissima Pathosystem (European Apple Canker)L. OLIVIERI, NIAB EMR, West Mailing, UNITED KINGDOM; Royal Holloway, University of London, Egham, UNITED KINGDOM

8:30 Pathogenicity and Delimitation of a Novel Corinectria sp. Infecting Picea rubensC. STAUDER, West Virginia University, Morgantown, WV, U.S.A.

8:45 Association Mapping and Transcriptomic Analyses Reveal Genes Associated with Resistance of Populus trichocarpa to Septoria Leaf SpotS. KERIO, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, U.S.A.

9:00 Peach Tree Tolerance to Cytospora leucostoma Infections Under Water Deficit and Increased Soil PhS. MILLER, Colorado State University, Fort Collins, CO, U.S.A.

SPECIAL SESSION: Beneficial Microbes: From Isolation to Product Registration and the Regulatory Process 1:00 – 2:15 p.m.; Room 25A/B Sponsored by AgBiome, Inc. Organizers: Mathias Twizeyimana, AgBiome, Inc., Research Triangle Park, NC, U.S.A.; Molly Cadle-Davidson, Advanced Biological Marketing, Inc., Geneva, NY, U.S.A. Moderators: Molly Cadle-Davidson, Advanced Biological Marketing, Inc., Geneva, NY, U.S.A.; Anthony Oyegoke Adesemoye, University of Nebraska-Lincoln, North Platte, NE, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Biological Control Committee, Phyllosphere Microbiology Committee, Regulatory Plant Pathology Committee

• Exploring Microorganisms from Plant, Soil, and Other Environments for Biocontrol Potential Against Crop Pathogens and Pests. M. TWIZEYIMANA, AgBiome, Inc., Durham, NC, U.S.A. • Microbes as Biocontrol, Biofertilizer, and Biostimulant Products: The Pathway to Regulatory Approval. S. D. COHEN, Center for Regulatory Research, LLC, Roseville, MN, U.S.A.

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• USDA Regulation of Genetically Engineered Plants and Microorganisms. P. B. DE SA SNOW, USDA APHIS BRS, Riverdale, MD, U.S.A. • Biological Product Formulation and Production Processes and Challenges. P. PATHAK, Marrone Bio Innovations, Inc., Davis, CA, U.S.A.

SPECIAL SESSION: Current Trends and Directions in CRISPR/Cas9 Technology for Filamentous Fungi and Oomycetes 1:00 – 2:15 p.m.; Room 26B/C Organizers: Barry Pryor, University of Arizona, Tucson, AZ, U.S.A.; Yinong Yang, The Pennsylvania State University, University Park, PA, U.S.A.; Stephen Marek, Oklahoma State University, Stillwater, OK, U.S.A. Moderator: Barry Pryor, University of Arizona, Tucson, AZ, U.S.A.Section: Molecular and Cellular Plant-Microbe Interactions Sponsoring Committees: Mycology, Biotechnology; Molecular and Cellular Phytopathology

• Versatile Applications of CRISPR/Cas9 Mediated Genome Editing in Fungal and Oomycete Pathogens. F. FANG, Duke University, Durham, NC, U.S.A. • CRISPR/Cas9 Genome Editing Tools for Functional Genomics and Biocontrol of Fungal Plant Pathogens. Y. YANG, The Pennsylvania State University, University Park, PA, U.S.A. • CRISPR/Cas9 Gene Editing in Fusarium oxysporum. J. COLEMAN, Auburn University, Auburn, AL, U.S.A.

SPECIAL SESSION: Pathogen Adaptation to the Plant Vascular System 1:00 – 2:15 p.m.; Room 26A Organizer: Leonardo De La Fuente, Auburn University, Auburn, AL, U.S.A. Moderator: Caitilyn Allen, University of Wisconsin-Madison, Madison, WI, U.S.A.Section: Molecular and Cellular Plant-Microbe Interactions Sponsoring Committees: Bacteriology Committee, APHIS Widely Prevalent Bacterial Diseases Mycology

• Plant Vascular Systems: An Introduction. A. J. McELRONE, University of California, Davis, Davis, U.S.A. • Verticillium Adaptation to the Xylem. P. H. J. THOMMA, Wageningen University, Wageningen, NETHERLANDS • Basis for Xanthomonas vascular plant pathogenesis. J. M. JACOBS, Department of Plant Pathology, The Ohio State University, Columbus, OH, U.S.A. • New Developments in Understanding the Role of Viral Factors in Tissue Tropism of Citrus Tristeza Virus. S. Y. FOLIMONOVA, Department of Plant Pathology, University of Florida, Gainesville, FL, U.S.A. • Metabolic Requirements for Colonization of the Tomato Xylem Niche. T. LOWE-POWER, University of California, Berkeley, Berkeley, CA, U.S.A. • Ionomes of Plants Infected with Vascular Pathogens: Xylella fastidiosa as a Case Study. P. COBINE, Auburn University, Auburn, AL, U.S.A.

SPECIAL SESSION: Plant Pathologists of the Future: Showcasing Graduate Student Presentation Winners from APS Division Meetings 1:00 – 2:15 p.m.; Room 15 Organizers: Albert K. Culbreath, University of Georgia, Department of Plant Pathology, Tifton, GA, U.S.A.; James A. LaMondia, Connecticut Agricultural Experiment Station, Windsor, CT, U.S.A. Moderator: Albert K. Culbreath, University of Georgia, Department of Plant Pathology, Tifton, GA, U.S.A.Section: Professionalism/Outreach Sponsoring Committees: APS Division Forum, Early Career Professionals Committee, APS Caribbean Division, North Central Division, Northeastern Division, Pacific Division, Potomac Division, Southern Division

• Colletotrichum spp. Causing Fruit Rots in Kentucky: Investigating Potential for Cross-Infection and Developing Improved Tools for Identification. M. MCCULLOCH, University of Kentucky, Lexington, KY, U.S.A. • Evidence of a Trans-Kingdom Plant Disease Complex Between a Fungus and Plant-Parasitic Nematodes. D. L. WHEELER, Montana State University, Bozeman, MT, U.S.A. • Spread of Verticillium Wilt Fungi Through Invasive Ailanthus altissima (Tree-of-Heaven) Stands in Virginia, U.S.A. R. K. BROOKS, Virginia Tech, Blacksburg, VA, U.S.A.

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• Moldy Core of Apple Caused by Alternaria spp. in Chile: Identification, Characterization and Potential Inoculum Source. K. ELFAR, Pontificia Universidad Catolica de Chile, Santiago, CHILE • Evaluating Genetic Resistance to Downy Mildew in Chenopodium Species for Use in Breeding Programs. H. NOLEN, University of New Hampshire, Dunham, NH, U.S.A. • Title TBD. T. HARTMAN, University of Nebraska-Lincoln, Lincoln, NE, U.S.A.

TECHNICAL SESSION: Epidemic Analysis 1:00 – 2:15 p.m.; Room 25C

1:00 Relationship Between Sudden Death Syndrome Caused by Fusarium virguliforme and Soybean Yield: A Meta-Analysis Y. R. KANDEL, Iowa State University, Ames, IA, U.S.A.

1:15 Network Meta-Analysis of Trials Evaluating the Susceptibility of Florida Strawberry Cultivars to Macrophomina phaseolina J. BAGGIO, Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

1:30 Increasing Accuracy of Strawberry Powdery Mildew Prediction via Dynamic Simulation ModelingM. L. FALL, Agriculture and Agri-Food Canada, Saint-Jean-sur-Richelieu, QC, CANADA

1:45 Wheat Blast Dynamics Within the Plant Canopy: A Spatio-Temporal AnalysisC. C. GONGORA-CANUL, Purdue University, West Lafayette, IN, U.S.A.

2:00 Modeling Spatiotemporal Dynamics and Time to Regional Outbreak of Soybean Rust in Southern BrazilE. M. DEL PONTE, Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, BRAZIL

ePosters give you an interactive experience with the science and the author’s perspective on their research. Plus, you now have on-demand access to all poster presentations in your pocket on the meeting mobile app.*Poster availability is based on what was submittedby the author.

New Th

is Ye

ar!

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All events take place in the Huntington Convention Center unless otherwise noted. Some small, selected meetings take place at the Hilton Cleveland Downtown and are noted as such (Hilton).The Discovery Walk will depart from the Lakeside Entrance (300 Lakeside Ave.) of the Huntington Convention Center.

TUESDAY, AUGUST 67:00 – 8:00 a.m. Poster Set-Up (Session 2) Hall C7:00 – 9:00 a.m. Annual Meeting Board Meeting—By invitation Room 197:30 – 9:30 a.m. Small Fruit Diseases Workers Discussion Room 137:30 a.m. – 5:30 p.m. Registration Desk Open Hall C7:45 – 10:00 a.m. Discovery Walk: The Ohio City Farm* Offsite8:00 – 9:00 a.m. Sustaining Associates Breakfast and Office of Public Sector Relations (OPSR) Board Meeting Room 218:00 – 11:00 a.m. Academic Unit Leaders Forum Meeting* Room 98:00 a.m. – 6:00 p.m. Plant Health Hub Open Hall C8:00 a.m. – 6:00 p.m. Poster Viewing Hours (Session 2) Hall C8:30 – 9:45 a.m. SPECIAL SESSION: Impacts of Agricultural Fungicides on Clinical Anti-Fungal Resistance–Panel Discussion Room 26B/C8:30 – 9:45 a.m. TECHNICAL SESSION: Advanced Detection and Diagnosis of Plant Diseases Room 25A/B8:30 – 9:45 a.m. TECHNICAL SESSION: From Virus Biology to Management Strategies Room 158:30 – 9:45 a.m. TECHNICAL SESSION: Soilborne Pathogen Interactions Room 25C8:30 – 11:30 a.m. SPECIAL SESSION: New Products and Services Room 168:30 – 11:30 a.m. SPECIAL SESSION: 18th I. E. Melhus Graduate Student Symposium: Molecular Basis of Plants, Pathogens, and Plant-Microbe Interactions: Today’s Students Build the Foundation for Next Level Plant Disease Resistance—Supported by Bayer Room 26A8:30 a.m. – 6:00 p.m. APS PRESS Bookstore Open Hall C9:30 – 11:30 a.m. APS Foundation Board Meeting—By invitation Room 1910:15 – 11:30 a.m. HOT TOPIC: Azole fungicides and resistance in agriculture, clinical settings, and the environment Room 26B/C10:15 – 11:30 a.m. SPECIAL SESSION: Propagate Plants, Not Pests and Pathogens Room 25C10:15 – 11:30 a.m. TECHNICAL SESSION: Indirect Measurement of Disease Development/Spread Room 25A/B10:15 – 11:30 a.m. TECHNICAL SESSION: Mechanisms of Virulence in Plant Pathogenic Prokaryotes Room 1511:30 a.m. – 1:00 p.m. Phytopathology News Advisory Committee Meeting Room 2111:30 a.m. – 1:00 p.m. APS Past Presidents Meeting—By invitation Room 2211:30 a.m. – 1:00 p.m. Lunch Break 11:30 a.m. – 1:00 p.m. Network with Exhibitors Hall C12:00 p.m. – 1:00 p.m. Widely Prevalent Bacteria Committee Meeting—By invitation Room 91:00 – 2:15 p.m. SPECIAL SESSION: Bottling Breakthroughs: How Industry Creates Plant Health Products from Scientific Innovation—Panel Discussion Room 26B/C1:00 – 2:15 p.m. SPECIAL SESSION: Genomics and Phenomics to Characterize Host Resistance Room 25A/B1:00 – 2:15 p.m. SPECIAL SESSION: Light, Leaves, and Pathogens—Spectroscopy for Plant Disease Detection Room 26A1:00 – 2:15 p.m. TECHNICAL SESSION: Elucidation of Plant Immune Responses to Bacterial Plant Pathogens Room 151:00 – 2:15 p.m. TECHNICAL SESSION: Population Diversity of Plant Pathogenic Bacteria Room 161:00 – 2:45 p.m. TECHNICAL SESSION: Mechanisms of Fungal and Oomycete Pathogenicity Room 25C1:30 – 2:30 p.m. APS-CSPP Working Group Meeting—By invitation Room 212:30 – 3:30 p.m. POD Talks Hall C2:30 – 5:00 p.m. Plant Health Hub Networking Break Hall C2:30 – 6:00 p.m. Network with Exhibitors Hall C3:00 – 4:00 p.m. Poster Viewing with Authors Present (Session 2, Odds) Hall C3:00 – 4:30 p.m. APS Foundation TIAA-CREF Planned Giving Meeting Room 93:30 – 4:30 p.m. Presidential Meeting of Plant Pathology Organizations—By invitation Room 214:00 – 5:00 p.m. Poster Viewing with Authors Present (Session 2, Evens) Hall C4:00 – 5:00 p.m. One-to-One Conversations with an Expert Hall C4:00 – 5:00 p.m. Idea Cafés Hall C5:15 – 6:30 p.m. APS North Central Division Awards Event Offsite6:00 – 7:00 p.m. LGBTQA Social and Networking Hour Offsite7:30 – 10:30 p.m. Cleveland Rocks!—Celebration Night at the Rock & Roll Hall of Fame Offsite* Preregistration and ticket required.

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DISCOVERY WALK: THE OHIO CITY FARM7:45 – 10:00 a.m.; Bus departs from the Huntington Convention Center

At nearly 6 acres, the Ohio City Farm is one of the largest contiguous urban farms in the United States. The purposes of the farm are to provide fresh, local healthy food to Cleveland’s underserved residents and to educate the community about the importance of food systems. In addition to taking a 1-hour guided walkthrough, attendees will meet with the farm’s refugee team and experience a fresh harvest tasting.

PHYTOPATHOLOGISTS OF DISTINCTION (POD) TALKS 2:30 – 3:30 p.m.; Hall C

Adventures in Science Anne Alvarez, Department of Plant and Environmental Protection Sciences, University of Hawaii, Honolulu, HI, U.S.A.

Raising Herefords and growing pumpkins in California, I had early visions of living on a cattle ranch and singing in the moonlight, but hungry people and the need for food production replaced my pipe dreams. Through outstanding mycology professors, I discovered the intricacy and beauty of the fungi and wanted to become a plant pathologist. Later, I learned that bacteria multiplied much faster than eukaryotes and were wonderful chemical factories with great potential for changing the world. Working mostly in Hawaii and southern Argentina, my adventures often consist of devising ways to make things work.

Twists and Turns Down a Forest Path Tom Harrington, Department of Plant Pathology and Microbiology, Iowa State University, Ames, IA, U.S.A.

Forest pathology is a small subdiscipline of plant pathology that has waxed and waned since the time I naively stumbled into it 45 years ago. I managed to stay in the field, despite several setbacks, by taking some career risks and veering off the path when necessary. Along the way, supportive mentors, solid graduate programs, and fellow students gave me the confidence to take on new and controversial challenges. The most rewarding projects led to the discovery and description of new tree diseases. It has been a privilege to work with great colleagues and students from around the world, with fungi from all the continents, from the level of forest landscapes to fungal genetics—a field that advanced from the crudest of genetic markers to the development of PCR and inexpensive genome analyses. It has been an incredible period of change, and I am grateful for all the unlikely events that brought me here.

4:00 – 5:00 p.m.; Hall C

Join your colleagues in the following roundtable discussions, located near the entrance of the Plant Health Hub. Topics as of June 1, 2019. Visit the mobile app or the Plant Health 2019 website for additional topics held during this time slot. • Approaching the Anti-GM Movement • Fungicide Resistance • Helping Scientists and Graduate Students in Developing Countries/Africa • International Student and Post-Doc Network • Management Thresholds: Risks, Challenges, and Opportunities • Using Unmanned Aerial Systems for Plant Disease Detection and Management

CLEVELAND ROCKS! CELEBRATION NIGHT7:30 – 10:30 p.m.; Rock & Roll Hall of Fame (offsite)

Cleveland Rocks! Celebration Night will not disappoint! Join us after dinner at the Rock & Roll Hall of Fame, where everyone becomes a rock star. Enjoy snacks and drinks and bask in the nostalgia of rock ’n’ roll legends such as the Beatles, Jimi Hendrix, David Bowie, and the Rolling Stones. Be sure to take in the new “Rock on TV” exhibit, which includes artifacts from The Brady Bunch, Saturday Night Live, and MTV Unplugged. So, get ready to have some fun while networking with colleagues during this year’s celebration night!

Tuesday Program Highlights

Idea Café

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SPECIAL SESSION: Impacts of Agricultural Fungicides on Clinical Anti-Fungal Resistance—Panel Discussion 8:30 – 9:45 a.m.; Room 26B/C Organizers: Jeffrey R. Standish, University of Georgia, Tifton, GA, U.S.A.; Stacey E. Swanson, FMC Corporation, Roseville, CA, U.S.A. Moderator: Scott D. Cosseboom, University of Maryland, College Park, MD, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Pathogen Resistance Committee, Chemical Control Committee

• Azole Fungicides in Agricultural Systems: Cereal Disease Control and Resistance Development in Aspergillus fumigatus. B. B. FRAAIJE, Rothamsted Research, Harpenden, UNITED KINGDOM • Impacts of the Global Emergence of Azole Resistance Among Aspergillus spp. on Humans in a Medical Setting. K. BEER, Centers for Disease Control and Prevention, Atlanta, GA, U.S.A. • Evolution of Azole-Resistant Aspergillus fumigatus in Agricultural and Clinical Environments. M. T. BREWER, University of Georgia, Athens, GA, U.S.A. • Fungicide Resistance Risk Evaluation and Resistance Management. M. SEMAR, FRAC, Crop Life International (CLI), Brussels, BELGIUM

TECHNICAL SESSION: Advanced Detection and Diagnosis of Plant Diseases 8:30 – 9:45 a.m.; Room 25A/B

8:30 One Lab-One Protocol: Synergetic Effect of 5’AT-Rich Flap to Harmonize qPCR Protocols for Easy, Sensitive, and Cost-Effective Diagnostics M. ARIF, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

8:45 Genome-Informed Recombinase Polymerase Amplification Assay for Specific and Sensitive Detection of Dickeya Species at Point-of-Care G. BOLUK, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

9:00 A Smartphone-Based Volatile Sensor Platform for Noninvasive Detection of Plant PathogensQ. WEI, North Carolina State University, Raleigh, NC, U.S.A.

9:15 Microneedle-Based Rapid Plant DNA Extraction: Towards In-Field Detection of Plant PathogensR. PAUL, North Carolina State University, Raleigh, NC, U.S.A.

9:30 Using Whole-Genome Sequencing for Pathogen Identification: ‘Candidatus Pectobacterium maceratum,’ a Potato Blackleg Pathogen in New York StateX. MA, Cornell University, Ithaca, NY, U.S.A.

TECHNICAL SESSION: From Virus Biology to Management Strategies 8:30 – 9:45 a.m.; Room 15

8:30 Understanding Collaboration of Genes in the Citrus tristeza virus Aphid TransmissionT. SHILTS, University of Florida, CREC, Lake Alfred, FL, U.S.A.

8:45 Deciphering Maize Chlorotic Mottle Virus Translation Initiation: Toward Resistance to Maize Lethal Necrosis Disease E. CARINO, Iowa State University, Ames, IA, U.S.A.

9:00 Virus Prevalence in Ohio Wheat Fields Is Associated with Cropping PracticesB. A. HODGE, The Ohio State University, Wooster, OH, U.S.A.

9:15 Changes in Prevalence of Potato virus Y Strains in Seed Potato in Idaho and Washington, 2016–2019A. V. KARASEV, University of Idaho, Moscow, ID, U.S.A.

9:30 Characterization of Novel Thrips Vector Proteins That Bind to Tomato Spotted Wilt VirusY. CHEN, North Carolina State University, Raleigh, NC, U.S.A.

TECHNICAL SESSION: Soilborne Pathogen Interactions 8:30 – 9:45 a.m.; Room 25C

8:30 Molecular and Cellular Interactions of the Root Lesion Nematode (Pratylenchus penetrans) with Alfalfa (Medicago sativa L.) L. G. NEMCHINOV, USDA ARS MPPL, Beltsville, MD, U.S.A.

8:45 Development of a Full-Length Clone of Sugar Beet Cyst Nematode Virus 1 and Its Successful Introduction into Soybean Cyst Nematode T. THEKKE VEETIL, Department of Crop Sciences, University of Illinois, Urbana, IL, U.S.A.

9:00 A Flagellum-Independent Hitchhiker Bacterium on the Rhizoctonia HighwayP. ZHANG, University of Florida, Gainesville, FL, U.S.A.

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9:15 Studying the In Vitro Interactions Between Fusarium virguliforme and Soil-Borne Nematodes Using Fluorescent Microscopy M. ROTH, Michigan State University, East Lansing, MI, U.S.A.

9:30 Deciphering Evidence of Plant Parasitic Nematode Dispersal and Biogeographic Patterns Derived from DNA Barcoding T. O. POWERS, University of Nebraska, Lincoln, NE, U.S.A.

SPECIAL SESSION: New Products and Services 8:30 – 11:30 a.m.; Room 16 With financial support from Bayer Crop Science Organizer: Julia Crane, Valent BioSciences, Libertyville, IL, U.S.A. Moderator: Julia Crane, Valent BioSciences, Libertyville, IL, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Industry Committee

• GEN1000 Plant Growth Chamber. B. HILDERMAN, Conviron, Winnipeg, MB, CANADA • A Novel Fogging Technology for Use in Reducing Pathogen Count on Seeds, SteraMist Using TOMI’s Binary Ionization Technology (BIT) Platform. H. SHANE, SteraMist by TOMI, Frederick, MD, U.S.A. • TerraStart and OxyFusion. V. CHOPPAKATLA, BiosafeSystems, LLC, East Hartford, CT, U.S.A. • PreBiotech, a Micronized Formulation of Crustacean Meal Designed for Use as a Prebiotic to Improve the Performance of Biological Fungicides. D. O. CHELLEMI, Agricultural Solutions, Fernandina Beach, FL, U.S.A. • DART Fungicide EC—A New Organic Option for Disease Control. R. A. HUDSON, Westbridge Agricultural Products, Vista, CA, U.S.A. • EcoSwing® Botanical Fungicide. D. CALIBEO, Gowan Company, Yuma, AZ, U.S.A. • Stargus and Amplitude Biofungicides. T. B. JOHNSON, Marrone Bio Innovations, Goodview, VA, U.S.A. • INDIFLIN™: A New Active Ingredient for Control of Row and Specialty Crop Diseases. K. W. SEEBOLD, JR., Valent USA, LLC, Lexington, KY, U.S.A. • Mefentrifluconazole—A New Broad-Spectrum Demethylation Inhibitor for Use on Turf, Row, and Specialty Crops. K. E. KALMOWITZ, BASF Corporation, Raleigh, NC, U.S.A. • Mefentrifluconazole–Four New Product Formulations for Use on Row and Specialty Crops. P. HALABICKI, BASF Corporation, Research Triangle Park, NC, U.S.A. • Miravis Ace on Cereals for Control of Fusarium Head Blight. T. L. HARP, Syngenta Crop Protection, Greensboro, NC, U.S.A. • Syngenta® Seedcare™ Introduces a New Sudden Death Syndrome and Nematode Solution for U.S. Soybean. D. IRELAND, Syngenta Crop Protection, Wildwood, MO, U.S.A.

SPECIAL SESSION: 18th I. E. Melhus Graduate Student Symposium: Molecular Basis of Plants, Pathogens, and Plant-Microbe Interactions: Today’s Students Build the Foundation for Next Level Plant Disease Resistance 8:30 – 11:30 a.m.; Room 26AWith financial support from Bayer Crop Science Organizer: Lirong Zeng, Plant Pathology Department, University of Nebraska-Lincoln, NE, U.S.A. Moderator: Lirong Zeng, Plant Pathology Department, University of Nebraska-Lincoln, NE, U.S.A.Section: Molecular and Cellular Plant-Microbe Interactions Sponsoring Committees: Molecular and Cellular Phytopathology Committee

• Plants Under Attack: Maize Phytohormonal Crosstalk During Multiple Biotic Stressors. K. FERREIRA DA SILVA, University of Nebraska-Lincoln, Lincoln, NE, U.S.A. • A Novel Antiviral Role of an Essential Chromatin-Associated Cellular Protein in Tombusvirus Replication in Yeast and Plants. P. ALATRISTE, University of Kentucky, Lexington, KY, U.S.A. • Arabidopsis and Barley Convergently Evolved an Engineerable Pathogen Protease Detection Mechanism. M. C ARTER, Cornell University, Ithaca, NY, U.S.A. • An Effector of the Citrus Huanglongbing-Associated Pathogen Provides Mechanistic Insight into Pathogenesis and Enhances Disease Management. K. CLARK, University of California, Riverside, Riverside, CA, U.S.A. • Abiotic and Biotic Stresses Universally Regulate the Rice Transcriptome. S. COHEN, Colorado State University, Fort Collins, CO, U.S.A. • Plants Under Attack: Maize Phytohormonal Crosstalk During Multiple Biotic Stressors. K. FERREIRA DA SILVA, University of Nebraska-Lincoln, Lincoln, NE, U.S.A.

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HOT TOPIC: Fungicide Resistance in Agriculture, Veterinary Medicine, Human Medicine, and the Environment—Panel Discussion 10:15 – 11:30 a.m.; Room 26B/C Organizer: Virginia O. Stockwell, USDA ARS Horticultural Crops Research Unit, Corvallis, OR, U.S.A.

This session will focus on a very timely topic that has been making headlines in major media outlets. Organized by Virginia Stockwell, who has extensive expertise in antimicrobial resistance, this panel discussion will feature experts from the Centers for Disease Control, USDA ARS Office of Pest Management Policy, and USGS to cover issues such as detection and persistence of pesticides and fungicides and the effects on the environment. The list of panel participants is provided on the Plant Health 2019 website and in the mobile app.

SPECIAL SESSION: Propagate Plants, Not Pests and Pathogens 10:15 – 11:30 a.m.; Room 25C Organizers: Fulya Baysal-Gurel, Tennessee State University, McMinnville, TN, U.S.A.; Cristi L. Palmer, IR-4, Princeton, NJ, U.S.A.; Margery L. Daughtrey, Cornell University, Long Island, NY, U.S.A. Moderators: Fulya Baysal-Gurel, Tennessee State University, McMinnville, TN, U.S.A.; Sladana Bec, University of Florida, Gainesville, FL, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Diseases of Ornamental Plant Committee, Regulatory Plant Pathology Committee, Diagnostics Committee, Virology Committee, Extension Committee

• Tracing the Production of Young Plants from Stock Plants to Rooting of Cuttings. R. G. LOPEZ, Michigan State University, East Lansing, MI, U.S.A. • A Chrysanthemum Industry Built on Clean Stock Principles. J. C. TROLINGER, Syngenta Flowers, Alva, FL, U.S.A. • Dip Before You Stick: Benefits and Risks of Cutting Dip Treatments Against Arthropod Pests. R. BUITENHUIS, Vineland Research and Innovation Centre, Vineland Station, ON, CANADA • Secret Passages: Cryptic Infections (and Human Foibles) Pose Challenges for Ensuring Clean Plant Material. M. PUTNAM, Oregon State University, Corvallis, OR, U.S.A. • Start Clean, Stay Clean—National Clean Plant Network. E. TZANETAKIS, University of Arkansas, Fayetteville, AR, U.S.A.

TECHNICAL SESSION: Indirect Measurement of Disease Development/Spread 10:15 – 11:30 a.m.; Room 25A/B

10:15 Perfect Storms: Tropical Cyclones and Their Effects on Pathogen Invasion and SaturationR. CHOUDHURY, Plant Pathology Department, University of Florida, Gainesville, FL, U.S.A.

10:30 Linking Sources and Sinks in the Long Distance Aerial Dissemination of Ubiquitous PathogensC. MORRIS, INRA, Plant Pathology Research Unit, Montfavet, FRANCE

10:45 Unsupervised Learning for Efficient Detection of Plant Disease Through Low Altitude Remote SensingR. DAVIS, Texas A&M University, College Station, TX, U.S.A.

11:00 Temporal Dynamics of Wheat Spike Blast and Disease Quantification Using Multispectral Aerial ImageryC. D. CRUZ, Purdue University, West Lafayette, IN, U.S.A.

11:15 Machine Learning-Based Early Rice Disease Detection Using Spectral ProfilesA. O. CONRAD, The Ohio State University, Columbus, OH, U.S.A.

TECHNICAL SESSION: Mechanisms of Virulence in Plant Pathogenic Prokaryotes 10:15 – 11:30 a.m.; Room 15

10:15 Comparative Genomics of Pectobacterium Species Revealed Remarkable Heterogeneity in Pathogenicity Determinants, Antimicrobial Compounds, and CRISPR CasE. D. ARIZALA, University of Hawaii, Honolulu, HI, U.S.A.

10:30 In Planta Experimental Evolution Experiments Shed New Insights on the Mechanism and Kinetics of Xanthomonas TAL Effector Host AdaptationD. TEPER, University of Florida, Lake Alfred, FL, U.S.A.

10:45 Cyclic-di-GMP Regulates Autoaggregation and Zinc Uptake in Erwinia amylovoraR. R. KHARADI, Michigan State University, East Lansing, MI, U.S.A.

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11:00 A Plasmid Gene Cluster Makes Major Contributions to Pantoea ananatis Virulence on Onion by Conferring Tolerance to a Reactive Sulfur PhytoanticipinB. H. KVITKO, University of Georgia, Athens, GA, U.S.A.

11:15 Towards Understanding Virulence in Clavibacter michiganensis subsp. nebraskensisY. ZHANG, University of Florida, Gainesville, FL, U.S.A.

SPECIAL SESSION: Bottling Breakthroughs: How Industry Creates Plant Health Products from Scientific Innovation—Panel Discussion 1:00 – 2:15 p.m.; Room 26B/C Organizer: Neil Glynn, Syngenta, Vero Beach, FL, U.S.A. Moderator: Neil Glynn, Syngenta, Vero Beach, FL, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Industry Committee, Early-Career Professional Committee

• The Future of Disease Control. G. SWART, Syngenta Crop Protection AG, Basel, SWITZERLAND • Taking the Shortcut from Lab to Field: Disseminating Research Findings Through Software. C. FRANZEN, Granular, Inc., San Francisco, CA, U.S.A. • New Tools for Unlocking Plant Diversity. R. RAPP, Pairwise, Durham, NC, U.S.A.

SPECIAL SESSION: Genomics and Phenomics to Characterize Host Resistance 1:00 – 2:15 p.m.; Room 25A/B Organizer: Awais Khan, Cornell University, Geneva, NY, U.S.A. Moderators: Awais Khan, Cornell University, Geneva, NY, U.S.A.; Ana Cristina Fulladolsa, Colorado State University, Fort Collins, CO, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Host Resistance, Evolutionary Genetics and Genomics

• Using Systems Genetics to Uncover Molecular Mechanisms That Integrate Nutrient and Defense Responses. W. BUSCH, Salk Institute for Biological Studies, La Jolla, CA, U.S.A. • Genomics and Phenomics Approaches to Understanding Root-Mediated Resistance to Ralstonia solanacearum in Tomato. IYER-PASCUZZI, Purdue University, West Lafayette, IN, U.S.A. • Deep Learning for Image-Based Detection of Northern Leaf Blight in Maize. M. GORE, Plant Breeding and Genetics Section, Cornell University, Ithaca, NY, U.S.A. • Dissecting the Disease Triangle: Host, Pathogen, and the Environment. R. BART, Donald Danforth Plant Science Center, St. Louis, MO, U.S.A. • Transcriptomics to Characterize Virus Resistance in Solanaceae and Cucurbits. Z. FEI, Boyce Thompson Institute, Ithaca, NY, U.S.A.

SPECIAL SESSION: Light, Leaves, and Pathogens—Spectroscopy for Plant Disease Detection 1:00 – 2:15 p.m.; Room 26A Organizers: Kaitlin M. Gold, University of Wisconsin-Madison, Madison, WI, U.S.A.; Amanda Gevens, University of Wisconsin-Madison, Madison, WI, U.S.A. Moderators: Kaitlin M. Gold, University of Wisconsin-Madison, Madison, WI, U.S.A.; Amanda Gevens, University of Wisconsin-Madison, Madison, WI, U.S.A.Section: Diseases of Plants Sponsoring Committees: Plant Pathogen and Disease Detection, Extension, Industry, Epidemiology, CLARE, Diagnostics, Soilborne Pathogens and Microbiomes, Graduate Student

• Reflectance Spectroscopy for Early Disease Detection—A New Frontier. K. M. GOLD, University of Wisconsin- Madison, Madison, WI, U.S.A. • Spectroscopy Systems for Differentiation of Biotic and Abiotic Stress at Multiple Levels of Detection. P. TOWNSEND, University of Wisconsin-Madison, Madison, WI, U.S.A. • Radiative Transfer Retrieval of Physiological Plant Traits for Pre-Visual Detection of Biotic Stress via Airborne Hyperspectral Imaging. P. J. ZARCO-TEJADA, University of Melbourne, Melbourne, AUSTRALIA • Hyperspectral Sensors for the Detection, Quantification, and Identification of Plant Diseases—Demands, Confounders and Strengths for Field Detection. D. BOHNENKAMP, INRES-Phytomedicine, Bonn, GERMANY

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TECHNICAL SESSION: Elucidation of Plant Immune Responses to Bacterial Plant Pathogens 1:00 – 2:15 p.m.; Room 15

1:00 Exploring Apoplastic Sulfate Restriction as a Component of Pattern Triggered Immunity in Arabidopsis thalianaA. LOVELACE, University of Georgia, Athens, GA, U.S.A.

1:15 What Is the Role of Auxin in Root-Mediated Resistance to Ralstonia solanacearum?K. RIVERA-ZULUAGA, Purdue University, West Lafayette, IN, U.S.A.

1:30 Recent Advances to Control Soft Rot DiseaseJ. R. JOSHI, Colorado State University, Fort Collins, CO, U.S.A.

1:45 Pipecolic Acid Confers Systemic Immunity by Inducing Formation of Free RadicalsH. LIU, University of Kentucky, Lexington, KY, U.S.A.

2:00 A UBC13-Interacting, RING Type E3 Ligase Acts with BAK1 And BIK1 to Regulate Plant ImmunityL. ZENG, Plant Pathology Department, University of Nebraska, Lincoln, NE, U.S.A.

TECHNICAL SESSION: Population Diversity of Plant Pathogenic Bacteria 1:00 – 2:15 p.m.; Room 16

1:00 It’s Complicated: The Xanthomonas perforans Population Across Florida Commercial Tomato FieldsJ. KLEIN, University of Florida, Gainesville, FL, U.S.A.

1:15 Prevalence of Streptomycin-Resistant Erwinia amylovora and Epiphytic Bacteria in Ohio Apple OrchardsA. JIMENEZ MADRID, The Ohio State University, Wooster, OH, U.S.A.

1:30 Distribution and Characteristics of Xanthomonas Species Causing Bacterial Spot in Midwestern Processing TomatoesF. ROTONDO, The Ohio State University, Department of Plant Pathology, Wooster, OH, U.S.A.

1:45 Effector Profiles of Xanthomonas perforans and X. euvesicatoria Provide Insights into the Evolution of Host Range and Virulence in BLS PathogensE. M. GOSS, University of Florida, Gainesville, FL, U.S.A.

2:00 Understanding Microbial Communities: Single-Gene Phylogenies and Their ResolutionM. ALEMAN, The Pennsylvania State University, University Park, PA, U.S.A.

TECHNICAL SESSION: Mechanisms of Fungal and Oomycete Pathogenicity 1:00 – 2:45 p.m.; Room 25C

1:00 With What Resolution Does Phytophthora infestans Distinguish Among Substrates?W. E. FRY, Cornell University, Ithaca, NY, U.S.A.

1:15 Screening Method for Selecting Cercospora cf. flagellaris Target Genes for Silencing via dsRNA ApplicationM. ZIVANOVIC, Department of Plant Pathology and Crop Physiology, Louisiana State University,Baton Rouge, LA, U.S.A.

1:30 Whole-Genome Sequencing of a Puccinia striiformis f. sp. tritici Mutant Population Identifies Avirulence Gene Candidates Y. LI, Department of Plant Pathology, Washington State University, Pullman, WA, U.S.A.

1:45 Identification of Putative Effector Genes in the Causal Agent of Spinach Fusarium Wilt, Fusarium oxysporum f. sp. spinaciae A. BATSON, Washington State University, Mount Vernon, WA, U.S.A.

2:00 Soybean and Corn Hosts Unveil Transcriptional Plasticity of Fusarium virguliformeA. BAETSEN-YOUNG, Michigan State University, East Lansing, MI, U.S.A.

2:15 Extension Education Using Animated Illustrations and Time-Lapse Videos of Disease Progression: Schroth AwardeeM. DOWLING, Clemson University, Clemson, SC, U.S.A.

31


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Sow, Know, and Grow


WEDNESDAY, AUGUST 7

7:00 – 9:00 a.m. Office of International Programs (OIP) Board Meeting Room 227:00 – 11:00 a.m. Plant Health Hub Open Hall C7:00 – 11:00 a.m. Poster Viewing Hours (Session 2) Hall C7:30 – 9:30 a.m. APS Awards and Honors Committee Meeting—By invitation Room 217:30 – 11:00 a.m. Registration Desk Open Hall C8:00 – 9:15 a.m. SPECIAL SESSION: Mycotoxin Mayhem: Insect Pests in the Mix Room 25A/B8:00 – 9:15 a.m. PHYTOVIEWS: Impacts of Open Access on APS Journals Room 26 B/C8:00 – 9:15 a.m. TECHNICAL SESSION: Etiology Room 168:00 – 9:15 a.m. TECHNICAL SESSION: Fungal and Oomycete Pathogens: New Approaches to Disease Resistance Room 158:00 – 9:15 a.m. TECHNICAL SESSION: Integrated Management of Plant Diseases Room 25C8:00 – 9:15 a.m. TECHNICAL SESSION: Population Diversity of Plant Pathogenic Nematodes Room 26A8:00 – 11:00 a.m. APS PRESS Bookstore Open Hall C9:00 – 11:00 a.m. Network with Exhibitors Hall C9:15 – 10:30 a.m. Plant Health Hub Networking Break Hall C 9:30 – 10:30 a.m. APS North Central Division Business Meeting Room 229:30 – 10:30 a.m. Idea Cafés Hall C10:45 a.m. – 12:00 p.m. Closing General Session Grand Ballroom A/B11:00 a.m. – 12:30 p.m. Poster Take-Down (Session 2) Hall C11:00 a.m. – 2:00 p.m. Exhibitor Take-Down Hall C12:00 – 3:00 p.m. APS Council Meeting Room 19

Wednesday

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9:30 – 10:30 a.m.; Hall C

Don’t miss the final day in the Plant Health Hub to take advantage of the innovative ideas and solutions coming out of the Idea Cafés! Topics as of June 1, 2019. Visit the mobile app or the Plant Health 2019 website for additional topics held during this time slot. • From Sequence to Management: Transforming Agricultural Microbiome Science • Get Your Undergraduates Ready for the Real World • I Think I Want to Go to Graduate School—Now What? • International Year of Plant Health • Mind the Gap: Ensuring How New Diagnostic Methods from Research Labs Can Be Successfully Implemented in Frontline Diagnostic Service • Non-Arthropod Vectors of Plant Viruses • The Roles of Seedbanks in Plant Pathology and the Roles of Plant Pathologists in Seedbanks

CLOSING GENERAL SESSION10:30 a.m. – 12:00 p.m.; Grand Ballroom A/B

Disruptive Innovations and the Communications Challenge Julie Borlaug, Inari, Dallas, TX, U.S.A.

Julie brings knowledge of external partnerships, communications, and corporate relations, following in the footsteps of Dr. Norman E. Borlaug, her grandfather, to expand his mission to feed the world’s hungry. Prior to joining Inari, Julie served as associate director of External Relations at the Borlaug Institute for International Agriculture. She also handled strategic initiatives for corporate relations within AgriLife Research at Texas A&M. Julie serves on several boards and advisory councils, including the Council for Agricultural Science & Technology (CAST), Seed World Editorial Board, Community for Zero Hunger, and Texas A&M Dallas Urban Agriculture Center Advisory Board. Julie received her MBA from the University of Dallas.

Wednesday Program Highlights

Ask APS! Editors from APS publications will be available in the APS PRESS bookstore to answer questions about publishing with APS. While you’re there:

• Celebrate a record-breaking year for Plant Disease with our new Plant Disease t-shirt.

• Learn how to get institutional access to all APS journals by recommending our free trial offer to your librarian.

• Identify with your favorite APS journal and show off your science by picking up one of our new journal stickers.

We’ll release new stickers every day for the journals and more. Stop by daily to collect them all!

Idea Café

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Session content listed in the program is as submitted by the author/presenter and has NOT been edited.

SPECIAL SESSION: Mycotoxin Mayhem: Insect Pests in the Mix 8:00 – 9:15 a.m.; Room 25A/B With financial support from the Seed Science Center, Iowa State University Organizers: Subbaiah Chalivendra, Louisiana State University AgCenter, Baton Rouge, LA, U.S.A.; Gary P. Munkvold, Iowa State University, Ames, IA, U.S.A. Moderators: Hillary L. Mehl, Virginia Tech Tidewater AREC, Suffolk, VA, U.S.A.; Subbaiah Chalivendra, Louisiana State University AgCenter, Baton Rouge, LA, U.S.A.Section: Biology and Disease Management Sponsoring Committees: Mycotoxicology: Jagger Harvey, Postharvest Patholog

• Pick Your Poison: Late Flowering Aspergillus flavus-Resistant Maize Lines, Corn Earworm, and Fumonisin. S. CHALIVENDRA, Louisiana State University AgCenter, Baton Rouge, LA, U.S.A. • Influence of Insects on Fumonisin Contamination of Maize Grain by Fusarium and Aspergillus Species. G. P. MUNKVOLD, Iowa State University, Ames, IA, U.S.A. • Stink Bug-Fusarium Interactions and Their Associations with Mycotoxin Contamination of Corn in the Mid- Atlantic U.S. H. L. MEHL, Virginia Tech Tidewater AREC, Suffolk, VA, U.S.A. • Fusarium Mycotoxins, Aphids, and Head Blight—A Dangerous Nexus. R. V. RAY, University of Nottingham, Loughborough, UNITED KINGDOM

Impacts of Open Access on APS Journals 8:00 – 9:15; Room 26 B/C

Moderators: Niklaus Grünwald, Oregon State University, Corvallis, OR, U.S.A.; Krishna Subbarao, University of California at Davis, Salinas, CA, U.S.A.

• Mark L. Gleason, Iowa State University, Ames, IA, U.S.A. • Greg Grahek, The American Phytopathological Society, St. Paul, MN, U.S.A. • Niklaus Grünwald, Oregon State University, Corvallis, OR, U.S.A. • Carolyn A. Young, Noble Research Institute, LLC, Ardmore, OK, U.S.A.

TECHNICAL SESSION: Etiology 8:00 – 9:15; Room 16

8:00 Identifying Dispersal Mechanisms of Ceratocystis fimbriata, Causal Agent of Black Rot, Within Sweetpotato Storage and Packing SystemsM. STAHR, North Carolina State University, Raleigh, NC, U.S.A.

8:15 Investigations on the Quiescent Behavior of Diaporthe ilicicola in Deciduous Holly FruitI. EMANUEL, The Ohio State University, Columbus, OH, U.S.A.

8:30 Spore Dispersal Patterns and Apple Infection Timing by Colletotrichum fioriniae, the Main Bitter Rot Fungus of Apples in PennsylvaniaP. L. MARTIN, Penn State University, University Park, PA, U.S.A.

8:45 Life History of a Puccinia coronata form Infecting Two Invasive Wetland PlantsN. GREATENS, Department of Plant Pathology, University of Minnesota, St. Paul, MN, U.S.A.

9:00 The Epidemiology of a New Phase of Lettuce Drop (Sclerotinia spp.): Symptomatology and Effect on Host PhysiologyB. E. MAMO, University of California, Davis, Salinas, CA, U.S.A.

TECHNICAL SESSION: Fungal and Oomycete Pathogens: New Approaches to Disease Resistance 8:00 – 9:15; Room 15

8:00 Targeted Mutagenesis of Basil Candidate Susceptibility Gene DMR1 Using CRISPR/Cas9N. NAVET, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

8:15 Drought Shapes Host Response to Pathogen Infection in S. bicolorM. KHASIN, USDA ARS, Lincoln, NE, U.S.A.

8:30 Characterizing the Sweetpotato NLR Resistome: Diploid Wild Relatives Genome Survey and Bait DesignC. H. PARADA ROJAS, North Carolina State University, Raleigh, NC, U.S.A.

Scientific Sessions

Sow, Know, and Grow

Phytoviews

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8:45 Classical Breeding and Gene-Silencing: Multi-Pronged Strategies to Address Incomplete Resistance to Sclerotinia Stem Rot in Soybean (Glycine max)M. MCCAGHEY, University of Wisconsin-Madison, Madison, WI, U.S.A.

9:00 Cold Shock—Uncovering Transcriptional Changes Driving a Model for Stress-Related Disease ResistanceB. A. WELDON, Cornell University, Geneva, NY, U.S.A.

TECHNICAL SESSION: Integrated Management of Plant Diseases 8:00 – 9:15; Room 25C

8:00 Updates on Management of Bacterial Spot of Cucurbits Incited by Xanthomonas cucurbitaeM. BABADOOST, University of Illinois, Crop Sciences Department, Urbana, IL, U.S.A.

8:15 Assessing and Optimizing Sprayer Technologies in Commercial Eastern Washington State Wine Grape VineyardsM. MCCOY, Washington State University, Prosser, WA, U.S.A.

8:30 Interactive Extension: Using Grower Surveys and Real Time Polls to Identify Management Strategies and Needs in Organic Tomato Late Blight ControlT. WU, University of Wisconsin-Madison, Madison, WI, U.S.A.

8:45 Modeling Yield Losses and Risk Analysis of Fungicide Profitability for Managing Fusarium Head Blight in Brazilian Spring WheatM. DUFFECK, The Pennsylvania State University, University Park, PA, U.S.A.

9:00 Integrated Management of Turnip Scab Caused by Streptomyces spp.S. MAMBETOVA, Michigan State University, East Lansing, MI, U.S.A.

TECHNICAL SESSION: Population Diversity of Plant Pathogenic Nematodes 8:00 – 9:15; Room 26A

8:00 Susceptibility of Sweetpotato Varieties to Meloidogyne enterolobii and Its Distribution in Eastern North CarolinaT. SCHWARZ, North Carolina State University, Raleigh, NC, U.S.A.

8:15 Comparing Populations of Plant-Parasitic Nematodes in a Corn-Soybean Rotation in OhioA. C. M. SIMON, The Ohio State University, Columbus, OH, U.S.A.

8:30 Population Density and Virulence Phenotypes of Heterodera glycines Associated with Soybean Fields in TennesseeR. AKINRINLOLA, University of Tennessee, Knoxville, Jackson, TN, U.S.A.

8:45 Studies on Plant-Parasitic Nematodes in Sugarbeet Fields and Host Status of Sugarbeet and Rotational Crops for Paratrichodorus alliusA. KC, North Dakota State University, Department of Plant Pathology, Fargo, ND, U.S.A.

9:00 The Morphological and Molecular Characteristics and Population Dynamics of Pratylenchus vulnus in Taiwan Strawberry Farm

J. I. YANG, National Taiwan University, Taipei, TAIWAN

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Representatives from leading industry suppliers and vendors will be at Plant Health 2019 to answer questions and share information on products and services. Thank you to all of our 2019 exhibitors for being part of this meeting! Exhibitors are listed as of July 11, 2019. Descriptions of exhibiting companies and company contacts can be found on and messagedthrough the mobile app.

Exhibit HoursPlant Health Hub, Hall C

Sunday, August 48:00 a.m. – 2:00 p.m. Exhibitor Set-Up4:00 – 6:00 p.m. Network with Exhibitors4:00 – 7:00 p.m. Plant Health Hub Open

Monday, August 57:00 a.m. – 6:00 p.m. Plant Health Hub Open11:30 a.m. – 1:00 p.m. Network with Exhibitors2:30 – 6:00 p.m. Network with Exhibitors

Tuesday, August 68:00 a.m. – 6:00 p.m. Plant Health Hub Open11:30 a.m. – 1:00 p.m. Network with Exhibitors2:30 – 6:00 p.m. Network with Exhibitors

Wednesday, August 77:00 – 11:00 a.m. Plant Health Hub Open9:00 – 11:00 a.m. Network with Exhibitors11:00 a.m. – 2:00 p.m. Exhibitor Take-Down

Exhibitor ListExhibitors are listed in alphabetical order.

103/105 Agdia, Inc. agdia.com101 Bayer CropScience bayer.com208 Bio Chambers, Incorporated biochambers.com508 Bioreba AG/Eurofins BioDiagnostics, Inc. eurofinsus.com/biodiagnosticsTabletop CABI styluspub.com408 CONVIRON conviron.com507 Corteva Agriscience corteva.com307 CSP Labs csplabs.com108 Dino-Lite Scopes dinolite.us510 Environmental Growth Chambers egc.com107 Gylling Data Management gdmdata.com210 Microbiology International 800ezmicro.com308 Nano Diagnostics nanodiaincs.com409 OPS Diagnostics, LLC opsdiagnostics.com209 OptiGene Limited optigene.co.uk407 The Pennsylvania State University plantpath.psu.edu109 Percival Scientific, Inc. percival-scientific.com207 PhytoAB, Inc. phytoab.com309 PhytoTech Labs, Inc. phytotechlab.com310 SteraMist By TOMI 110 Texas Department of Agriculture texasagriculture.gov509 USDA APHIS PPQ aphis.usda.gov/aphis/ourfocus/planthealth

Exhibitors

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POSTER SESSION 1

Session 1 CategoriesAbiotic Interactions 38Analytical and Theoretical Plant Pathology 38Biochemistry and Cell Biology 39Biological Control 39Biotechnology and Genetic Engineering 41Chemical Control 42Crop Loss Assessment 45Cultural Control 45Fungicide and Antibiotic Resistance 46Genetics of Resistance 47Host Resistance Screening 49Integrated Pest Management 50Molecular Plant-Microbe Interactions 50Nematology 52

POSTER SESSION 2

Session 2 CategoriesNew and Emerging Diseases 52Outreach and Education 55Pathogen Detection, Quantification, and Diagnosis 55Pathogen Dispersal and Survival 58Pathogenicity and Host Specificity 58Pathogen-Vector/-Insect Interactions 59Phytobiomes 59Plant Defense Response 60Population Biology and Genetics 62Postharvest Pathology and Mycotoxins 64Proteomics/Metabolomics/Genomics 65Remote Sensing and Sensor Technology 66Virology 67

Not able to stop by all the posters you are interested in? All poster authors were given the opportunity to create and upload an ePoster. Visit the ePoster kiosk in the Plant Health Hub for the full interactive experience. Noninteractive ePosters are also available for viewing in the mobile app.

Poster content listed in the program is as submitted by the authors/presenter and has not been edited.

Taking photographs of poster content without permission of the author(s) is strictly prohibited.

Poster Set-Up (Session 1) Sunday, August 4, 8:00 – 10:00 a.m. Poster Viewing (Session 1) Sunday, August 4, 4:00 – 7:00 p.m. Monday, August 5, 7:00 a.m. – 6:00 p.m. Poster Viewing with Authors Present (Session 1, Odds) Monday, August 5, 3:00 – 4:00 p.m.Poster Viewing with Authors Present (Session 1, Evens) Monday, August 5, 4:00 – 5:00 p.m. Poster Take-Down (Session 1) Monday, August 5, 6:00 – 7:00 p.m.

Poster Set-Up (Session 2) Tuesday, August 6, 7:00 – 8:00 a.m. Poster Viewing (Session 2) Tuesday, August 6, 8:00 a.m. – 6:00 p.m. Wednesday, August 7, 7:00 – 11:00 a.m. Poster Viewing with Authors Present (Session 2, Odds) Tuesday, August 6, 3:00 – 4:00 p.m. Poster Viewing with Authors Present (Session 2, Evens) Tuesday, August 6, 4:00 – 5:00 p.m. Poster Take-Down (Session 2) Wednesday, August 7, 11:00 a.m. – 12:30 p.m.

Plant Health 2019 Posters

NEW! For 2019, posters will be displayed in TWO SESSIONS.

Sow, Know, and Grow

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ABIOTIC INTERACTIONS 002-P1 Requirements for in vitro pseudothecia development and ascospore maturation of Venturia effusa. C. A. YOUNG,

Noble Research Institute, LLC, Ardmore, OK, U.S.A.

003-P1 Determining the ecological and environmental parameters influencing host colonization of the soybean root rot pathogen, Fusarium proliferatum. V. CAST, Kansas State University, KS, U.S.A.

004-P1 Physiological changes in conidia of the fungal pathogen Neofusicoccum mediterraneum when exposed to desiccation. J. LAKE, California State University, Fresno, Fresno, CA, U.S.A.

005-P1 Relationship between soil fungal densities and soil chemical properties in Pennsylvania. A. Y. BANDARA, The Pennsylvania State University, University Park, PA, U.S.A.

006-P1 Association of selected biological and chemical properties of soil with within-farm-spatial-variation of soybean yields in Pennsylvania. A. Y. BANDARA, The Pennsylvania State University, University Park, PA, U.S.A.

007-P1 Prevalence of phytoplasma groups is not influenced by climatic or environmental conditions, in Quercus humboldtii of Bogotá, Colombia. L. FRANCO-LARA, Universidad Militar Nueva Granada, Cajica, COLOMBIA

008-P1 Huanglongbing-irrigation pH interaction affects disease progression. S. SHARMA, University of Florida, Lake Alfred, FL, U.S.A.

009-P1 Impact of crop rotation on genetic diversity of Fusarium isolates causing Fusarium head blight in Pennsylvania. M. DUFFECK, The Pennsylvania State University, University Park, PA, U.S.A.

010-P1 Effect of light-sensing genes on growth and pathogenicity of Zymoseptoria tritici. C. MCCORISON, Purdue University, West Lafayette, IN, U.S.A.

011-P1 Influence of physical and chemical soil variables on intensity of Fusarium wilt of blackberry caused by Fusarium oxysporum species complex. A. REBOLLAR-ALVITER, Univ. Autonoma Chapingo, Morelia, Michoacan, MEXICO

012-P1 Pythium sylvaticum delays soybean emergence and increase seed loss at high soil moisture. M. SERRANO, Iowa State University, Ames, IA, U.S.A.

013-P1 Influence of time of sudden death syndrome foliar symptom onset on SDS intensity, soybean yield, and yield components. M. RAZA, Iowa State University, Ames, IA, U.S.A.

ANALYTICAL AND THEORETICAL PLANT PATHOLOGY 014-P1 Effects of statistical distributions of diseased leaves and numbers of classes in disease scales on the accuracy of

estimates of mean disease severity. K. S. CHIANG, National Chung Hsing University, Taichung, TAIWAN

015-P1 Modeling pathogen distribution in strawberry production fields with the goal of developing precision fumigation strategies. M. MATSON, USDA ARS, Salinas, CA, U.S.A.

016-P1 Biology, epidemiology and detection of oak wilt in Michigan. K. CHAHAL, Michigan State University, East Lansing, MI, U.S.A.

017-P1 Modeling Huanglongbing dispersal gradients in Brazilian epidemics. A. BERGAMIN FILHO, University of São Paulo, Piracicaba, BRAZIL

018-P1 Temporal dispersal of brown and orange rust spores of sugarcane in Florida. B. CHAULAGAIN, University of Florida, Belle Glade, FL, U.S.A.

020-P1 Phytophthora canker affecting CCN51 clones on high productivity cacao farms in Ecuador. A. PUIG, USDA-ARS, Miami, FL, U.S.A.

021-P1 Bioclimatic models predict areas of current and future suitable habitat for Armillaria spp. in western Oregon and Washington. J. W. HANNA, Rocky Mountain Research Station, USDA Forest Service, Moscow, ID, U.S.A.

022-P1 Growth stage vs. forecasting model based fungicide application to manage Phomopsis stem canker of sunflower (Helianthus annuus). F. M. MATHEW, South Dakota State University, Brookings, SD, U.S.A.

023-P1 Effect of temperature and wetness duration on temporal rate of Sclerotinia stem rot disease development in canola. F. SHAHOVEISI, North Dakota State University, Fargo, ND, U.S.A.

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024-P1 Impact of relative humidity, temperature, photoperiod and plant age on infections of Sphaerulina leaf spot and stem canker of wild lowbush blueberry. P. A. ABBASI, Agric. & Agri-Food Canada, Kentville, NS, CANADA

025-P1 A compartmental (SEIR) model for predicting Fusarium head blight epidemics in wheat. M. DUFFECK, The

Pennsylvania State University, University Park, PA, U.S.A.

026-P1 Post-anthesis rainfall effects on the efficacy of tebuconazole + prothioconazole against Fusarium head blight and deoxynivalenol in wheat. W. BUCKER MORAES, The Ohio State University, Wooster, OH, U.S.A.

027-P1 A meta-analysis of the efficacy of endophytic, entomopathogenic Beauveria bassiana against plant pathogens. B. H. OWNLEY, University of Tennessee, Knoxville, TN, U.S.A.

028-P1 Risk factors for bacterial diseases of banana in Haiti and the Caribbean. W. DANTES, Plant Pathology Department, University of Florida, Gainesville, FL, U.S.A.

BIOCHEMISTRY AND CELL BIOLOGY 029-P1 Discovery of tunicamycin-related biosynthetic gene clusters in three Rathayibacter species, including one endemic

to the Northwest U.S. (R. agropyri). E. E. ROGERS, Foreign Disease-Weed Science Research, USDA-ARS, Fort Detrick, MD, U.S.A.

030-P1 Cell-length heterogeneity: a population-level solution to growth/virulence trade-offs in the plant pathogen Dickeya dadantii. Q. ZENG, The Connecticut Agricultural Experiment Station, New Haven, CT, U.S.A.

031-P1 Role of lipid droplets in self-resistance of Cercospora cf. flagellaris to cercosporin. M. I. COSTA DE NOVAES, Louisiana State University, Baton Rouge, LA, U.S.A.

032-P1 Determination of secondary metabolites and their role in root infection by soybean fungi, Macrophomina phaseolina and other pathogens. V. KHAMBHATI, Mississippi State University, Mississippi State, MS, U.S.A.

033-P1 Production of cell wall degrading enzymes by pathogenic Streptomyces isolated from turnip. K. VERMEULEN, Michigan State University, East Lansing, MI, U.S.A.

034-P1 Extraction and detection of guanosine 5’-diphosphate-3’-diphosphate from Clavibacter michiganensis subsp. michiganensis cells. K. BAI, China Agricultural University, Beijing, CHINA

035-P1 X-ray Microscopy and Spectroscopy of Brown Spots of Quercus acutissima. K. W. KIM, Kyungpook National University, SOUTH KOREA

036-P1 Silverleaf effects on plum fruit yield and quality. D. GRINBERGS, INIA Quilamapu, Chillan, CHILE

037-P1 Histology of plant-microbe interaction at the Populus trichocarpa-Sphaerulina musiva interface. S. KERIO, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, U.S.A.

038-P1 Bacteriocin evolution and regulation in Pseudomonas syringae. M. SMITH, Pennsylvania State University, PA, U.S.A.

BIOLOGICAL CONTROL 039-P1 Evaluation of selected gymnosperms against Fusarium oxysporum cubense causing Panama disease of banana and

characterization of active compounds. I. UZMA, National Agricultural Research Center, Islamabad, PAKISTAN

040-P1 Biological control agent, Rhizobium vitis strain ARK-1 suppresses expression of the essential and non-essential vir genes of tumorigenic R. vitis. A. KAWAGUCHI, National Agricultural and Food Research Organization, Fukuyama, JAPAN

041-P1 Organic control of bacterial wilt Erwinia tracheiphila in cucumber using dried Withania coagulan (L) in in-vivo and in-vitro controlled conditions. K. KHAN, University of Life Sciences Poznan, Poznan, POLAND

043-P1 Virulence enhancement of weed pathogens: efficacious herbicidal fungi by selection of increased amino acid excretion. D. SANDS, Montana State University, Bozeman, MT, U.S.A.

044-P1 Isolation, characterization, and evaluation of potential biocontrol bacterial strains for managing bacterial spot disease of pumpkin. S. SULLEY, University of Illinois - Crop Sciences Dept, Urbana, IL, U.S.A.

045-P1 Characteristics of Aureobasidium pullulans strains exhibiting biocontrol activity against fruit decay pathogens from different parts of the world. W. J. JANISIEWICZ, USDA-ARS, Appalachian Fruit Research Station,

Kearneysville, WV, U.S.A.

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046-P1 Identification and screening of bacteria for the biocontrol of Xanthomonas hortorum pv. carotae in carrot seed crops. J. K. S. DUNG PHD, Oregon State University, Madras, OR, U.S.A.

047-P1 Mycoparasitism and host-specificity of Sphaerellopsis species on rust fungi. P. GOMEZ ZAPATA, Purdue University, West Lafayette, IN, U.S.A.

048-P1 The use of proteases for the management of plant diseases. M. LEWIS, Novozymes, Durham, NC, U.S.A.

049-P1 Evaluation of a strain of Bacillus subtilis for management of Phytophthora blight of bell pepper. J. HANSEL, North Carolina State University, Raleigh, NC, U.S.A.

050-P1 Hypovirulent Fusarium pseudograminearum strain FC136-2A for a potential biological control agent of wheat crown rot. H. LI, Dept. of Plant Pathology, Henan Agricultural University, Zhengzhou, Henan, CHINA

051-P1 Biological control of sudden decline syndrome of date palm caused by Fusarium solani using ACC deaminase producing actinobacteria in the UAE. K. A. EL-TARABILY, United Arab Emirates University, Al Ain, UAE

052-P1 Biocontrol of spruce decline: comparison of interactions between Diaporthe spp. and fungal endophytes from Colorado blue spruce (Picea pungens). K. SHIN, Michigan State University, East Lansing, MI, U.S.A.

053-P1 Biological control of Corynespora leaf fall disease (CLF) in the rubber tree by Bacillus amyloliquefaciens T3. Q. B. NGUYEN, Nong Lam University, Ho Chi Minh, VIETNAM

054-P1 Biological control of Aspergillus flavus and aflatoxin contamination of maize in Sub-Saharan Africa. E. GACHANGO, AgBiome, Inc., Durham, NC, U.S.A.

055-P1 Evaluation of biocontrol agents against Fusarium virguliforme: potential tools for soybean sudden death syndrome management. M. FILGUEIRA PIMENTEL, Southern Illinois University, Carbondale, IL, U.S.A.

056-P1 Biocontrol activity and mechanism perspective of a novel Bacillus thuringiensis strain. P. YANG, The Ohio State University, Columbus, OH, U.S.A.

058-P1 Understanding niche clearing as a means to improve establishment and efficacy of applied bacterial biological controls. J. DOHERTY, University of Maryland, College Park, MD, U.S.A.

059-P1 Rhizophagus intraradices reduces disease severity of sudden death syndrome on soybean. M. L. PAWLOWSKI, Univ. of Illinois Urbana Champaign, Urbana, IL, U.S.A.

060-P1 Characterization of antifungal activity of soybean endophytic bacterium Burkholderia pyrrocinia strain MS455. J. JIA, Mississippi State University, Mississippi State, MS, U.S.A.

061-P1 Biological control activity of Bacillus sp. RAB14R against rice blast disease and its formulation to increase shelf life. N. JUNGKHUN, Department of Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA, U.S.A. and Chiang Rai Rice Research Center, Rice Department, Chiang Rai, THAILAND

063-P1 Biological control of black Sigatoka in bananas and plantains in Sub-Saharan Africa. M. TWIZEYIMANA, AgBiome, Inc., RTP, NC, U.S.A.

064-P1 Biological control of sorghum anthracnose in Sub-Saharan Africa. E. GACHANGO, AgBiome, Inc., Durham, NC, U.S.A.

065-P1 Genetic factors influencing the efficacy and persistence of biocontrol of aflatoxin contamination in maize. J. M. S. LUIS, CIFR, Dept. of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, U.S.A.

066-P1 Bee vectoring technology using Clonostachys rosea as biological control for Botrytis fruit rot on strawberry in Florida. M. BOLOGNESI DE MORAIS, University of Florida, Gulf Coast Research and Education Center, Wimauma, FL, U.S.A.

067-P1 The potential of herbal essential oils to control pulse crop pathogens. L. PARIKH, Montana State University, Bozeman, MT, U.S.A.

068-P1 Characterization of Trichoderma sp. isolates for use in biological control of plant pathogens. B. D. T. FRANCESCHI, São Paulo State University “Júlio de Mesquita Filho”, Wimauma, FL, U.S.A.

070-P1 Actinobacteria from native potato to control plant pathogenic bacteria. A. FRANCE, INIA Quilamapu, Chillan, CHILE

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071-P1 Microbial solutions for agriculture: challenges for academia and industry. P. SHARMA, SKNAU, Jobner-Jaipur, Jaipur, INDIA and Indian Agricultural Research Institute, New Delhi, INDIA

072-P1 Identification of beneficial Pseudomonas strains for the biocontrol of Botrytis cinerea in floriculture crops. K. SOUTH, The Ohio State University, Wooster, OH, U.S.A.

073-P1 Plant metabolite-based resistance to Oidium neolycopersici in organic- and high tunnel-grown tomato. E. A. FEALKO, University of Kentucky, Lexington, KY, U.S.A.

074-P1 Potential of Beneficial Trichoderma isolates in Alleviating Drought Stress in Tomato. R. RAWAL, Department of Horticulture and Crop Science, Ohio State University, Wooster, OH, U.S.A.

075-P1 Beneficial microorganisms can enhance greenhouse floriculture plant performance under reduced fertility. L. J. CHAPIN, The Ohio State University, Wooster, OH, U.S.A.

076-P1 Verticillium nonalfalfae as a Potential Biological Control Agent for the Invasive Toona sinensis Tree in Pennsylvania. M. MERCADO, The Pennsylvania State University, University Park, PA, U.S.A.

077-P1 Enhanced hypovirus transmission by engineered super donor strains of the chestnut blight fungus, Cryphonectria parasitica, in a forest setting. M. T. KASSON, West Virginia University, Division of Plant and Soil Sciences, Morgantown, WV, U.S.A.

078-P1 Biocontrol potential of Streptomyces isolates on fungal pathogens (Helminthosporium solani, Pythium ultimum.) of potatoes. S. TAYLOR, Brigham Young University, Provo, UT, U.S.A.

079-P1 A Bacterial Isolate Shows Promise as a Biofungicide for Sclerotinia Stem Rot Disease on Canola. A. DAKOURI, Agriculture and Agri-Food Canada, Saskatoon, SK, CANADA

082-P1 In vitro control of Colletotrichum acutatum isolates from citrus using extract from brown alga Dictyota dichotoma. C. REBELLO, Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

083-P1 Influence of biological agents on the production of Magnaporthe oryzae´s conidia in upland rice, under field conditions. M. C. DE FILIPI PHD, EMBRAPA-CNPAF, Santo Antonio De Goiania, BRAZIL

086-P1 Effects of chitin on antibiotic and lytic enzyme gene expression by the biocontrol bacterium Lysobacter enzymogenes. D. SHI, University of Nebraska-Lincoln, Lincoln, NE, U.S.A.

BIOTECHNOLOGY AND GENETIC ENGINEERING 089-P1 Dissecting the role of oxidative stress in host-Aspergillus flavus interactions using genomics and genetic engineering.

J. C. FOUNTAIN, University of Georgia, Tifton, GA, U.S.A.

090-P1 Engineering high affinity protein ligands to plant pathogens and pests via continuous evolution. J. LI, Innatrix Inc., Cary, NC, U.S.A.

091-P1 Transgenic Arabidopsis expressing a modified plant thionin enhanced resistance to Fusarium graminearum. G. HAO, USDA/ARS/NCAUR, Peoria, IL, U.S.A.

092-P1 CRISPR-LbCas12a (LbCpf1)-mediated modification of citrus. H. JIA, CREC, University of Florida, Lake Alfred, FL, U.S.A.

094-P1 Genome editing of citrus using the CRISPR-Ribonucleoprotein complexes. A. PARSAEIMEHR, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, U.S.A.

095-P1 Improvement of CRISPR/Cas9 genome editing efficacy in citrus. T. LAMICHHANE, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, U.S.A.

096-P1 Wheat genome editing via CRISPR/Cas9 to incorporate virus resistance. M. NAVIA-URRUTIA, Kansas State University, Manhattan, KS, U.S.A.

097-P1 CRISPR/Cas9-enabled multiplex genome editing and locus-dependent DNA repair in Magnaporthe oryzae. M. WHEATLEY, The Pennsylvania State University, University Park, PA, U.S.A.

098-P1 Editing of plant eIF4E genes for potyviral resistance. Z. XIONG, University of Arizona, Tucson, AZ, U.S.A.

Sow, Know, and Grow

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CHEMICAL CONTROL 099-P1 A New Source of Silicon for Blast Control on Rice. P. R. SILVEIRA, UFV, Viçosa, BRAZIL

100-P1 Quantifying Control Efficacy of Fungicides Commonly Applied for Potato Early Blight Management. S. K. R. YELLAREDDYGARI, North Dakota State University, Fargo, ND, U.S.A.

101-P1 Asian Soybean Rust Control on Soybean Sprayed with a New Source of Soluble Silicon. C. SILVA DIAS, UFV, Viçosa, BRAZIL

102-P1 Zinc oxide as an ultraviolet light protectant for natamycin in pre-havest management of gray mold and powdery mildew of strawberry. D. CHEN, Department of Microbiology and Plant Pathology, University of California, Riverside, CA, U.S.A.

103-P1 The efficacy of MgO bactericide against bacterial spot disease of tomato is particle size-dependent. Y. Y. LIAO, University of Florida, Gainesville, FL, U.S.A.

104-P1 Efficacy of fungicides and biotic agents for the control of basil downy mildew in Illinois. E. T. JOHNSON, USDA ARS, IL, U.S.A.

105-P1 Evaluation of SAR Inducers for the Management of Bacterial Spot on Fresh-Market Tomatoes. A. L. STRAYER-SCHERER, North Carolina State University, Waynesville, NC, U.S.A.

106-P1 Chemical control of sudden decline syndrome of date palm caused by Fusarium solani in the United Arab Emirates. K. A. EL-TARABILY, United Arab Emirates University, Al Ain, UAE

107-P1 Efficacy of seed treatment fungicides for the management of seed-borne Ascochyta blight disease of chickpea under high disease pressure. F. CRUTCHER, Montana State University, Sidney, MT, U.S.A.

108-P1 Reduction of Shoot Blight Initiation of Fire Blight Cankers on Apple Wood by Post-infection Applications of Prohexadione-calcium. S. AĆIMOVIĆ, Cornell University, Hudson Valley Research Laboratory, Highland, NY, U.S.A.

109-P1 In planta antibacterial activity of oxytetracycline against Candidatus Liberibacter asiaticus causing citrus HLB disease. J. LI, University of Florida, Lake Alfred, FL, U.S.A.

110-P1 Evaluation of management strategies for Fusarium crown and root rot in Michigan asparagus. S. E. GETSON, Michigan State University, East Lansing, MI, U.S.A.

111-P1 Evaluation of ningnanmycin antiviral activities in three model patho-systems. T. L. SIT, North Carolina State University, Raleigh, NC, U.S.A.

112-P1 Sensitivity of baseline and exposed Podosphaera leucotricha populations from apple to fungicides from three chemical groups. L. GANAN, Washington State University, Wenatchee, WA, U.S.A.

113-P1 Comparative performance of fungicides, biofungicides, host plant defense inducers, and fertilizer in suppression of Phytophthora root rot in boxwood. M. HOLDEN, Tennessee State University, McMinnville, TN, U.S.A.

114-P1 Etiology, biology and management of almond trunk and scaffold canker diseases in California. L. A. HOLLAND, University of California, Davis, Davis, CA, U.S.A.

115-P1 The influences of infection timing and postharvest fungicide applications on perennation of the downy mildew pathogen in hop. B. CLAASSEN, Oregon State University, Corvallis, OR, U.S.A.

116-P1 Optimizing use of new products for management of root-knot nematode, Meloidogyne incognita, on carrots. B. B. WESTERDAHL, University of California, Davis, Davis, CA, U.S.A.

117-P1 Fungicide applications prevent Colletotrichum acutatum secondary conidiation from appressoria and conidiogenous hyphae on citrus leaves. A. B. GAMA, University of Florida, Wimauma, FL, U.S.A.

120-P1 Management of black leaf spot of rose with fungicides. F. BAYSAL-GUREL, Tennessee State University, McMinnville, TN, U.S.A.

121-P1 Residual effect of fungicides applied for flower protection and control of Sclerotinia stem rot of soybean. T. J. J. MIORINI, North Dakota State University, Carrington Res. Ext. Center, Carrington, ND, U.S.A. and North Dakota State University, Carrington, ND, U.S.A.

122-P1 Possible synergistic effect of prohexadione-calcium and acibenzolar-S-methyl in managing shoot blight of apple. S. M. SLACK, Michigan State University, East Lansing, MI, U.S.A.

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123-P1 Comparative analysis of two fungicide sensitivity tests for Helminthosporium solani. S. DESOTELL, Michigan State University, East Lansing, MI, U.S.A.

124-P1 Ningnanmycin—A novel antiviral and antifungal plant activator. B. MA, SePRO Corporation, Whitakers, NC, U.S.A.

125-P1 Baseline Sensitivity of Alternaria alternata and A. arborescens to Natamycin and Control of Alternaria Rot on Blueberry Fruit. F. WANG, USDA ARS, Parlier, CA, U.S.A.

126-P1 Novel Boron Containing Chemistry for Management of Plant Pathogenic Fungi. L. STEERE, Boragen, Inc., Research Triangle Park, NC, U.S.A.

127-P1 Evaluation of chemical treatments and cultivars on the incidence of powdery scab and Potato mop-top virus in potato. Y. ZENG, Colorado State University, Fort Collins, CO, U.S.A.

128-P1 Evaluation of a single seedling treatment with nanoscale nutrients to control Fusarium wilt symptoms of chrysanthemum. L. R. TRIPLETT, Connecticut Agricultural Experiment Station, New Haven, CT, U.S.A.

129-P1 Higher rates of phosphonate improve efficacy against scab on pecan. M. W. HOTCHKISS, USDA-ARS-Southeastern Fruit and Tree Nut Research Laboratory, Byron, GA, U.S.A.

130-P1 Tractor speed and concentration of active ingredient affect the incidence and severity of scab on peach fruit. C. H. BOCK, USDA ARS, Southeastern Fruit and Tree Nut Research Laboratory, Byron, GA, U.S.A.

131-P1 Sensitivity of Rhizoctonia solani isolates from soybean and sugar beet to selected SDHI and QoI fungicides. P. SHARMA, Department of Plant Pathology, University of Minnesota, St. Paul, MN, U.S.A.

132-P1 Population structure and fungicide sensitivity of Phytophthora capsici in Tennessee. T. SIEGENTHALER, University of Tennessee, Knoxville, TN, U.S.A.

133-P1 Comparison of conventional and organic fungicides, application intervals, and cultivars to manage tomato early blight in Tennessee. Z. R. HANSEN, University of Tennessee, Knoxville, TN, U.S.A.

134-P1 Efficacy and baseline of succinate dehydrogenase inhibitor (SDHI) fungicides for management of Colletotrichum crown rot of strawberries. M. OLIVEIRA, Gulf Coast Research and Education Center, University of Florida,

Wimauma, FL, U.S.A.

135-P1 Improved seed treatment efficacy by nanoencapsulation of fungicides for the control of Fusarium graminearum. F. MAURI MARCOS, Iowa State University, Ames, IA, U.S.A.

136-P1 Analysis of fungicide efficacy on Macrophomina phaseolina isolates from West Tennessee. R. GUYER, University of Tennessee, Jackson, TN, U.S.A.

137-P1 Effects of seed storage conditions and chemical disinfestation treatments on the survival of Xanthomonas vasicola pv. vasculorum on maize seed. S. ARIAS, Iowa State University, Ames, IA, U.S.A.

138-P1 Fungicide sensitivity and efficacy profiling of Georgia Plasmopara viticola isolates causing grapevine downy mildew. P. M. BRANNEN, University of Georgia, Athens, GA, U.S.A.

140-P1 Evaluation of at-plant treatments for control of Rhizoctonia diseases of potato in Wisconsin. A. IRABOR, University of Wisconsin-Madison, Madison, WI, U.S.A.

141-P1 Developing cost-effective, sustainable fungicide programs for managing downy mildew on cucumber in Florida. A. SHIRLEY, UFL Plant Pathology, Wimauma, FL, U.S.A.

142-P1 Impact of metalaxyl, ethaboxam, and mefenoxam on in-vitro growth rate of Pythium isolates from Pennsylvania. A. Y. BANDARA, The Pennsylvania State University, University Park, PA, U.S.A.

143-P1 The effect of EMS (ethyl methanesulfonate) induced mutations on altering virulence of the spinach downy mildew pathogen, Peronospora effusa. B. LIU, Univ. of Arkansas, Fayetteville, AR, U.S.A.

144-P1 Effect of Apron Maxx seed treatment on soybean seedling diseases, seedling vigor, and yields in Pennsylvania. A. Y. BANDARA, The Pennsylvania State University, University Park, PA, U.S.A.

145-P1 Strategies for reducing seed rot and seedling damping-off of alfalfa (Medicago sativa). D. A. SAMAC, USDA ARS, St. Paul, MN, U.S.A.

Sow, Know, and Grow

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146-P1 Sensitivity of Sclerotinia sclerotiorum collected from the Mid-Atlantic region of the United States to six fungicide active ingredients. H. DEMISSIE, University of Maryland, Salisbury, MD, U.S.A.

147-P1 Syngenta® Seedcare™ Introduces a New Sudden Death Syndrome and Nematode Solution for US Soybean. D. IRELAND, Syngenta Crop Protection, Wildwood, MO, U.S.A.

148-P1 Where does your fungicide go? Fungicide fate following various mowing and irrigation treatments. C. STEPHENS, North Carolina State University, Raleigh, NC, U.S.A.

149-P1 Impact of soybean maturity on the yield response to one versus two fungicide applications targeting white mold. T. J. J. MIORINI, North Dakota State University, Carrington Res. Ext. Center, Carrington, ND, U.S.A.

150-P1 In vitro evaluation of fungicides for the management of citrus brown wood rot in Arizona. J. HU, School of Plant Sciences, University of Arizona, Tucson, AZ, U.S.A.

151-P1 Control of blue mold of apples by Academy application via thermal fogging. C. COLLAZO-GONZALEZ, Syngenta Crop Protection, Vero Beach, FL, U.S.A.

152-P1 Zinc nanoparticles offer systemic efficacy against ‘Candidatus Liberibacter asiaticus’ improving yield. E. G. JOHNSON, University of Florida, Lake Alfred, FL, U.S.A.

154-P1 Using essential oils as an alternative to chemical fungicides in the control of Early Blight disease of tomatoes. C. SANTA, Kutztown University, Kutztown, PA, U.S.A.

156-P1 Increasing Efficiency and Efficacy of the National Cottonseed Treatment Trial. S. PATE, University of Tennessee, Jackson, TN, U.S.A.

157-P1 Sensitivity of Colletotrichum acutatum, causal agent of anthracnose fruit rot of strawberry to fungicides alternative to quinone-outside inhibitors. C. REBELLO, Gulf Coast Research and Education Center, University of Florida,

Wimauma, FL, U.S.A.

158-P1 Evaluation of antimicrobial effects and plant uptake of novel antimicrobial formulation MS3T to control surface and systemic pathogens in citrus. H. MENDIS, University of Central Florida, Orlando, FL, U.S.A.

159-P1 Evaluation of Isotianil, Isotianil + Fosetyl-Al and Bacillus subtilis QST713 on Coffee Leaf Rust and Brown Eye Spot in Coffee nursery plants. C. A. ANGEL, CENICAFE, FNC Colombia, Manizales, COLOMBIA

160-P1 Evaluation of host plant defense inducers for the management of boxwood blight in North Carolina. A. LLANOS MELO, North Carolina State University, Mill River, NC, U.S.A.

162-P1 Effectiveness of fungicide programs for control of potato early blight in Central Wisconsin, 2018. J. HAMMEL, University of Wisconsin-Madison, Madison, WI, U.S.A.

163-P1 Discovery of small molecule growth inhibitors to control bacterial leaf spot (BLS) disease of tomato. V. SRIVASTAVA, The Ohio State University, Food Animal Health Research Program, Wooster, OH, U.S.A.

164-P1 Effects of two-treatment fungicide programs on grain yield and quality of Fusarium head blight-affected Wheat. J. D. SALGADO, The Ohio State University, Wooster, OH, U.S.A.

165-P1 Sensitivity of Fusarium graminearum in Michigan to fungicide pydiflumetofen, a component of Miravis formulations. M. R. BREUNIG, Michigan State University, East Lansing, MI, U.S.A.

166-P1 Small molecule screening against the secreted “Ca. L. asiaticus” peroxiredoxin, LasBCP, reveals promising chemicals to prevent infection of citrus. A. MUNOZ BODNAR, University of Florida, Gainesville, FL, U.S.A.

167-P1 Effect of foliar spray with Eucalyptus extracts on disease incidence and yield loss to spot blotch in Wheat Bhakkar 2001 under green house condition. K. BAHADAR, PARC Institute of Advanced Studies in Agriculture, Islamabad, PAKISTAN

168-P1 Preliminary screening of resistance inducers to control Coffee Leaf Rust (Hemileia vastatrix Berk. & Br.) at nursery stage in Colombia. C. A. ANGEL, CENICAFE, FNC Colombia, Manizales, COLOMBIA

169-P1 Baseline sensitivity of Cercospora sojina isolates to adepidyn causing frog eye leaf spot on soybeans. G. OLAYA, Syngenta Crop Protection, Vero Beach, FL, U.S.A.

170-P1 Baseline sensitivity distribution of Bremia lactucae isolates to the fungicide oxathiapiprolin. G. OLAYA, Syngenta Crop Protection, Vero Beach, FL, U.S.A.

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171-P1 The effects of reducing chlorothalonil use in fungicide spray programs for melon diseases. J. G. JONES, University of Maryland, College Park, Salisbury, MD, U.S.A.

172-P1 Management of Phakopsora pachyryzi in Brazil. E. ZUCHELLI, Universidade de Passo Fundo, Rio Grande Do Sul, BRAZIL

173-P1 Bacterial Spot of Peach: Chemical Sensitivity in Strains from Cankers, Leaves and Fruit. B. COX, Clemson University, Clemson, SC, U.S.A.

CROP LOSS ASSESSMENT 174-P1 Untangling the effect of late season soybean diseases on yield. H. A. LIN, University of Illinois at Urbana-Champaign,

Urbana, IL, U.S.A.

176-P1 Assessment of the Relationship Between Bacteria Leaf Spot Severity and Crop Yield of Fresh Market and Processing Tomato. C. SAINT-PREUX, The Ohio State University, Wooster, OH, U.S.A.

177-P1 Field sampling of kernel smut in rice and its effect on yield and quality. L. ESPINO, University of California Cooperative Extension, Oroville, CA, U.S.A.

178-P1 Color- and metric-based k-means clustering (CM-KMC) for quantification of rice sheath blight infection. D. Y. LEE, Department of Plant Pathology, The Ohio State University, OH, U.S.A.

CULTURAL CONTROL 179-P1 Influence of carbon input on anaerobic soil disinfestation efficacy for control of Fusarium wilt in strawberry. E.

KLARER, Washington State University, Wenatchee, WA, U.S.A.

180-P1 Impacts of anaerobic soil disinfestation carbon source on dynamics of the soil metabolome and microbiome. E. KLARER, Washington State University, Wenatchee, WA, U.S.A.

181-P1 Aerated steam by the ‘Plant Sauna’ eradicates powdery mildew from strawberry transplants. A. STENSVAND, Norwegian Institute of Bioeconomy Research, Ås, NORWAY

182-P1 The effects of sanitizers on Calonectria pseudonaviculata and C. henricotiae conidia and microsclerotia viability. N. SHISHKOFF, USDA ARS FDWSRU, Frederick, MD, U.S.A.

183-P1 Effect of biofumigation with solarization in suppressing Phytophthora root and crown rot on field-grown boxwood. M. HOLDEN, Tennessee State University, McMinnville, TN, U.S.A.

184-P1 Management of Soil-borne Strawberry Diseases with Alternative Fumigation Methods. M. RAHMAN, West Virginia University, Morgantown, WV, U.S.A.

185-P1 The effect of three-year crop rotation on soybean production. D. HUO, The Ohio State University, Wooster, OH, U.S.A.

186-P1 Determining the viability of Candidatus Liberibacter asiaticus (CLas) via RNA-based assay and grafting results. N. THAPA, University of Florida, Lake Alfred, FL, U.S.A.

187-P1 Effect of deficit irrigation on development of Fusarium wilt in processing tomato. K. R. PAUGH, University of California, Davis, Davis, CA, U.S.A.

188-P1 Thermotherapy via aerated steam: a safe practice to strawberry with benefits in disease control. N. Y. WANG, Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

189-P1 Effect of thermotherapy for ratoon stunt on leaf scald control. C. ANDREATO, UFSCAR, Araras, BRAZIL

190-P1 Multi-site field assessment of bio-renovation methods to control apple replant disease. S. S. HEWAVITHARANA, California Polytechnic University San Luis Obispo, San Luis Obispo, CA, U.S.A.

191-P1 Resistance to Non-Race 1 Verticillium dahliae in Tomatoes Suppresses Necrosis and Chlorosis Symptoms in Infected Plants. T. W. INGRAM, North Carolina State University, Raleigh, NC, U.S.A.

192-P1 Synergy of Anaerobic Soil Disinfestation (ASD) and Trichoderma in Rhizoctonia Root Rot Suppression. R. B. KHADKA, The Ohio State University, Department of Plant Pathology, Wooster, OH, U.S.A.

194-P1 Evaluation of UVC for suppression of powdery mildew and other diseases of strawberry in open field production. R. BORBA ONOFRE, University of Florida, Gulf Coast Research and Education Center, Wimauma, FL, U.S.A.

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195-P1 Optimizing nighttime UV-C doses and application intervals for control of cucumber powdery mildew. J. PATEL, Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, U.S.A.

196-P1 Red and blue LEDs used for horticulture lighting can suppress sporulation of Peronospora belbahrii, the causal organism of basil downy mildew. J. PATEL, Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, U.S.A.

198-P1 Enabling water use adaptation in containerized annuals: Using substrate to reduce disease risks associated with deficit irrigation. J. BEAULIEU, University of California, Davis, Davis, CA, U.S.A.

FUNGICIDE AND ANTIBIOTIC RESISTANCE 199-P1 Genomic alterations in Sclerotinia sclerotiorum after sub-lethal fungicide exposure. N. GAMBHIR, University of

Nebraska, Lincoln, NE, U.S.A.

200-P1 A closer look into fungicide resistance: How does application rate affect the development of SDHI resistance? K. AYER, Cornell University, Geneva, NY, U.S.A.

202-P1 Copper-resistant strains of Xanthomonas gardneri and X. perforans from Illinois tomato fields. S. KHANAL, University of Illinois at Urbana Champaign, Urbana, IL, U.S.A.

203-P1 Competitiveness of Multifungicide Resistant Botrytis cinerea Isolates Under Field Conditions. M. HU, University of Maryland, College Park, MD, U.S.A.

204-P1 Fungicide resistance in Penicillium expansum from pome fruit in the U.S. Pacific Northwest. A. AMIRI, Washington State University, Wenatchee, WA, U.S.A.

206-P1 Species identification and fungicide resistance profiling of Botrytis isolates from Maryland vineyards. S. D. COSSEBOOM, University of Maryland, College Park, MD, U.S.A.

207-P1 Molecular and bioassay evidence of fungicide resistance of Podosphaera clandestina. P. S. SWAMY, Washington State University, Prosser, WA, U.S.A.

208-P1 In vitro insensitivity of Rhizoctonia solani to the natural product UK-2A associated with L198F variant at the Qi target site of cytochrome b. C. AVILA-ADAME, Corteva Agriscience, The Agriculture Division of DowDuPont, Indianapolis, IN, U.S.A.

210-P1 Impact of CYP51 gene copy number and expression on DMI fungicide resistance in Blumeria graminis f.sp. tritici. E. A. MEYERS, North Carolina State University, Raleigh, NC, U.S.A.

211-P1 In vitro fitness comparisons among Cercospora nicotianae of varying sensitivity to azoxystrobin. W. BARLOW, University of Kentucky, Lexington, KY, U.S.A.

212-P1 Sequence analysis of cytochrome b gene in Venturia nashicola isolates with reduced sensitivity to QoI fungicides. H. ISHII, Kibi International University, Minami-awaji, JAPAN and Tsukuba University, Tsukuba, Ibaraki, JAPAN

213-P1 Fungicide Sensitivity of 395 Sclerotinia sclerotiorum Isolates from Dry Bean and Soybean. E. H. NIETO-LOPEZ, University of Nebraska, Lincoln, NE, U.S.A.

214-P1 Detection and fungicide sensitivity surveillance of wild rice (Zizania palustris) pathogens. C. V. CASTELL-MILLER, PLPA-UMN, Saint Paul, MN, U.S.A.

215-P1 Occurrence of quinone outside inhibitor (QoI) resistance in Virginia populations of Parastagonospora nodorum infecting wheat. N. KAUR, Virginia Tech Tidewater AREC, Suffolk, VA, U.S.A.

216-P1 Development of a rapid isothermal assays to detect QoI resistance in Erysiphe necator the causal agent of grape powdery mildew. N. SHARMA, Michigan State University, East Lansing, MI, U.S.A.

217-P1 Investigating fungicide sensitivity shifts in North American Zymoseptoria tritici field populations. G. AUGUSTI, Rothamsted Research, Harpenden, UNITED KINGDOM

218-P1 Azoxystrobin sensitivity testing in Rhizoctonia solani AG2-2 populations affecting Michigan sugar beet. J. F. WILLBUR, Michigan State University, East Lansing, MI, U.S.A.

219-P1 Investigation of in vitro and in planta transfer of chromosomally-encoded copper resistance in Xanthomonas perforans. R. BHANDARI, Auburn University, Auburn, AL, U.S.A.

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220-P1 Study of copper tolerance and resistance genes copA and copB in the plant pathogen Xylella fastidiosa. Q. GE, Auburn University, Auburn, AL, U.S.A.

221-P1 Resistance to thiophanate-methyl in Botrytis spp. from greenhouse crops in Kansas. C. L. DAY, Manhattan, KS, U.S.A.

222-P1 ALLELE-SPECIFIC DETECTION METHODS FOR QoI and DMI FUNGICIDE RESISTANT ERYSIPHE NECATOR ISOLATES IN VINEYARDS. M. COLLE, Michigan State University, East Lansing, MI, U.S.A.

223-P1 Monitoring Fungicide Resistance in Botrytis cinerea on grapes in Michigan. S. A. ALZOHAIRY, Michigan State University, East Lansing, MI, U.S.A.

224-P1 Detection of SdhB mutations in Botrytis cinerea isolates from strawberry using a High-Resolution Melting (HRM) assay. A. ZUNIGA, University of Florida, Gulf Coast Research and Education Center, Wimauma, FL, U.S.A.

225-P1 Assessing the impact of the G137S substitution in Venturia effusa on QoI efficacy in commercial pecan orchards. T. B. BRENNEMAN, University of Georgia, Tifton, GA, U.S.A.

226-P1 A high throughput bioassay to rapidly characterize Erysiphe necator resistance to demethylation inhibitor fungicides. A. T. WONG, Oregon State University, Corvallis, OR, U.S.A.

227-P1 Characterizing the sensitivity of Midwestern Phytophthora infestans isolates to mefenoxam. L. MIGLIANO, University of Wisconsin-Madison, Madison, WI, U.S.A.

228-P1 Evolution and spread of SDHI-resistant alleles within field populations of Zymoseptoria tritici in the UK. B. B. FRAAIJE, Rothamsted Research, Harpenden, UNITED KINGDOM

229-P1 Fungicide sensitivity, detection the G143A point mutation associated a QoI´s and competitive fitness of Magnaporthe oryzae populations from Brazil. L. SILVEIRA D’ÁVILA, Universidade Federal do Recôncavo da Bahia, Cruz Das Almas, BRAZIL and Universidade Federal do Recôncavo da Bahia, Cruz Das Almas, BRAZIL

230-P1 Rapid sampling techniques to monitor quinone outside inhibitor fungicide resistant Erysiphe necator. S. LOWDER, Oregon State University, Corvallis, OR, U.S.A.

231-P1 Fungicide Resistance Profiles In Botrytis cinerea From Commercial Cut Flower Roses And Influence of Cultural Practices on Spore Movement. M. MUNOZ, Clemson University, Clemson, SC, U.S.A.

232-P1 Survey for quinone outside inhibitor fungicide-resistant Cercospora sojina in Kentucky. D. NEVES, University of Kentucky, Princeton, KY, U.S.A.

233-P1 A rapid method for detection of Sclerotinia sclerotiorum sensitivity to Fluazinam and Carbendazim fungicides. M. LOBO JR., Embrapa Rice and Beans, Santo Antonio de Goias, BRAZIL

GENETICS OF RESISTANCE 234-P1 Mapping of a clubroot resistance gene from rutabaga using bulked-segregant RNA-Seq. A. DAKOURI, Agriculture

and Agri-Food Canada, Saskatoon, SK, CANADA

235-P1 Mapping disease resistance in the presence of random meiotic pairing: a case study in rose. J. D. ZURN, USDA-ARS NCGR, Corvallis, OR, U.S.A.

236-P1 Response of sorghum enhanced in monolignol biosynthesis to stalk rot pathogens. D. L. FUNNELL-HARRIS, Food Indus Comp., Lincoln, NE, U.S.A.

237-P1 The quest for fruit resistance in American cranberry. J. J. POLASHOCK, USDA ARS, Chatsworth, NJ, U.S.A.

238-P1 Evaluating Bacterial Wilt Resistant Tomato Lines for Resistance QTLs and Their Disease Reaction Against Phylotypes I and II Strain of Ralstonia spp. S. KUNWAR, University of Wisconsin-Madison, Madison, WI, U.S.A.

239-P1 Genome wide association studies of Fusarium wilt resistance in spinach (Spinacia oleracea L.). S. GYAWALI, Washington State University, Mount Vernon, WA, U.S.A.

240-P1 Stripe rust epidemics of wheat and barley and races of Puccinia striiformis identified in the United States in 2018. X. CHEN, USDA-ARS, Pullman, WA, U.S.A.

241-P1 ISF guidelines on the nomination of novel plant pathogen races and strains. P. T. HIMMEL, UC Davis, Davis, CA, U.S.A.

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242-P1 Characterizing the genetic basis of silver scurf resistance in the diploid potato clone ‘C287’. S. MACCHIAVELLI-GIRÓN, University of Wisconsin-Madison, Madison, WI, U.S.A.

244-P1 Fusarium Root Rot Resistant Genotypes and Genomic Regions Identified in Two Major Common Bean Gene Pools. S. JAIN, North Dakota State University, Fargo, ND, U.S.A.

245-P1 Enabling gene pyramiding of rust resistance genes in common bean by untangling their epistatic interactions. M. A. PASTOR-CORRALES PHD, ARS USDA, Beltsville, MD, U.S.A.

246-P1 High-density SNP linkage mapping and single marker association analysis of soybean RILs segregating for resistance against Phytophthora root rot. C. BOLANOS, The Ohio State University, Wooster, OH, U.S.A.

247-P1 Phytophthora sojae pathotype variability across Ohio, Indiana and Kentucky. L. WEBER, The Ohio State University, Wooster, OH, U.S.A.

248-P1 Phenotyping the sorghum nested association mapping (NAM) parents for charcoal rot resistance. A. NOOR, Dept. of Plant Pathology, Kansas State University, Manhattan, KS, U.S.A.

249-P1 Evaluation of resistance to Ralstonia solanacearum in blueberry and identification of functional resistance genes. A. M. BOCSANCZY, University of Florida, MREC, Apopka, FL, U.S.A.

250-P1 Phenotyping soybean lines for resistance to multiple Fusarium species. G. MOREL GADEA, Iowa State University, Ames, IA, U.S.A.

252-P1 Disease development in cotton when co-inoculated with the soilborne fungi Fusarium oxysporum f. sp. vasinfectum race 4 and Rhizoctonia solani. M. L. ELLIS, California State University Fresno, Fresno, CA, U.S.A.

253-P1 Genotypic and phenotypic evaluation of Fusarium oxysporum f. sp. vasinfectum race 4 isolates collected from cotton in California. M. L. ELLIS, California State University Fresno, Fresno, CA, U.S.A.

254-P1 Pathogenicity diversity of Korean race K3a of Xanthomonas oryzae pv. oryzae. S. KIM, Rural Development Administration, SOUTH KOREA

256-P1 Functional analysis of transient receptor potential channel in Fusarium solani causing root rot of Panax notoginseng. Y. LI, China Agricultural University, Beijing, CHINA

257-P1 Identification of a New Class of Transcription Activation-Like Effector, pthXp1, Among Xanthomonas perforans Strains Collected in Alabama. E. A. NEWBERRY, Auburn University, Auburn, AL, U.S.A.

259-P1 Application of in vivo imaging system (IVIS) and labeled Xanthomonas strains to quantify bacterial colonization as a measure of disease resistance. E. BERNAL, The Ohio State University, Department of Horticulture and Crop Science, Wooster, OH, U.S.A.

260-P1 Phenotypic and genotypic characterization of resistance to Ustilago maydis from teosinte and maize-teosinte introgression lines. U. BHATTA, The University of Georgia, Athens, GA, U.S.A.

261-P1 Fighting a cereal killer: novel sources of resistance to wheat head blast. G. CRUPPE, Kansas State University, Manhattan, KS, U.S.A.

262-P1 Do Resistance Genes Act Synergistically Against Grapevine Powdery Mildew (Erysiphe necator)? S. D. SAPKOTA, Cornell University, Geneva, NY, U.S.A.

263-P1 First genome-wide association study of wheat head blast identifies potential novel loci conferring resistance. G. CRUPPE, Kansas State University, Manhattan, KS, U.S.A.

264-P1 Wild Cucurbita species as reservoirs of virus tolerance and resistance. C. HINSHAW, The Pennsylvania State University, University Park, PA, U.S.A.

266-P1 Races of Puccinia graminis f. sp. tritici with virulence to stem rust resistance genes effective against Ug99. Y. JIN, USDA-ARS Cereal Disease Laboratory, Saint Paul, MN, U.S.A.

268-P1 Toward Positional Cloning of Lr57 And Yr40 Wheat Rust Resistance Genes. J. STEADHAM, University of Maryland College Park, College Park, MD, U.S.A.

269-P1 Mapping a Promising Susceptibility Gene for Fusarium Head Blight in Wheat. B. CHHABRA, University of Maryland College Park, College Park, MD, U.S.A.

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270-P1 Resistance to multiple races of Puccinia graminis f. sp. tritici in Ethiopian durum wheat landraces. W. DENBEL, Department of Plant Pathology, University of Minnesota, St. Paul, MN, U.S.A. and Ethiopian Institute of Agricultural Research, Debre Zeit, ETHIOPIA

HOST RESISTANCE SCREENING 272-P1 Evaluation of sesame varieties grown in Mississippi Delta for yield and mycotoxin contaminations. H. K. ABBAS,

USDA-ARS, Biological Control of Pests Research Unit, Stoneville, MS, U.S.A.

273-P1 Developing a holistic in vitro assay to screen Prunus species to Armillalria root rot. P. DEVKOTA, Michigan State University, East Lansing, MI, U.S.A.

274-P1 Screening various Prunus species to find sources of resistance to Armillaria species. P. DEVKOTA, Michigan State University, East Lansing, MI, U.S.A.

275-P1 Identification of orange fleshed sweet potato clone resistant to three different species of rootknot nematodes. A. FURTADO SILVEIRA MELLO, Embrapa Vegetables, Brasilia, BRAZIL

276-P1 Screening commercial cucumber cultivars for resistance to anthracnose using image analysis. R. SCHLUB, University of Guam, Mangilao, AP, U.S.A.

277-P1 A sustainable approach to Phytophthora-infested landscape beds: the search for tolerant or resistant annuals and herbaceous perennials. M. HENSON, North Carolina State University, Waynesville, NC, U.S.A.

279-P1 The search for brown rot resistance in potato. D. J. NORMAN, University of Florida, MREC, Apopka, FL, U.S.A.

280-P1 Screening citrus genotypes for Phytophthora nicotianae tolerance. M. KUNTA, Texas A&M University Kingsville Citrus Center, Weslaco, TX, U.S.A.

281-P1 Evaluation of resistance in rootstock materials to manage Armillaria root disease in peach orchards of Mexico. N. B. KLOPFENSTEIN, Rocky Mountain Research Station, USDA Forest Service, Moscow, ID, U.S.A.

282-P1 Idaho spring wheat varies in susceptibility to Fusarium head blight. S. ARCIBAL, University of Idaho, Aberdeen, ID, U.S.A.

283-P1 Phlox species have varied susceptibility to powdery mildew isolates from the Eastern United States. C. FARINAS, The Ohio State University, Columbus, OH, U.S.A.

284-P1 Evaluation of global collection of triticale to Pyrenophora tritici-repentis(tan spot) races 1, 5, and Ptr ToxA. S. ALI, South Dakota State University, Brookings, SD, U.S.A.

285-P1 Hybrid rice outperforms inbred rice in resistance against sheath blight and narrow brown leaf spot. J. SHI, Texas A&M AgriLife Research Center, Beaumont, TX, U.S.A. and Mianyang Academy of Agricultural Sciences, Mianyang, CHINA

286-P1 Resistance to anthracnose in 76 cultivars and elite breeding lines of strawberry. O. A. GONZALEZ BENITEZ, California Polytechnic State University, San Luis Obispo, CA, U.S.A.

287-P1 Assessing susceptibility of University of Florida southern highbush blueberry cultivars to bacterial wilt. D. BAYO, University of Florida, Gainesville, FL, U.S.A.

288-P1 Forty-one accessions have possible resistance to Diaporthe gulyae causing Phomopsis stem canker of sunflower (Helianthus annuus). R. GUIDINI, South Dakota State University, SD, U.S.A.

290-P1 Resistance of solanaceous rootstocks to Ralstonia pseudosolanacearum strains. H. KANYAGHA, The Ohio State University, Wooster, OH, U.S.A.

291-P1 Susceptibility of Geranium Cultivars to Botrytis cinerea in the Greenhouse. S. SHRESTHA, Michigan State University, East Lansing, MI, U.S.A.

292-P1 Susceptibility of geranium and snapdragon cultivars to Pythium irregulare. N. LUKASKO, Michigan State University, East Lansing, MI, U.S.A.

293-P1 Strawberry cultivars have differing susceptibility to the two major Colletotrichum pathogens, C. acutatum and C. gloeosporioides. T. E. SEIJO, Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

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294-P1 Resistance of strawberry cultivars to crown rot caused by Phytophthora cactorum and P. nicotianae. M. MARIN, Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

295-P1 Resistance of commercial dry bean cultivars to soybean cyst nematode. O. HAMILTON, Plant Pathology, NDSU, Fargo, ND, U.S.A.

296-P1 Zoospore production and inoculation techniques for screening Aphanomyces root rot of Alfalfa. S. RUDE, University of Wisconsin-Madison, Madison, WI, U.S.A.

298-P1 Comprehensive Disease Survey on USDA-ARS Cucumber Germplasm Collections in Search for Downy Mildew Resistance at Charleston SC. M. K. MANDAL PHD, Claflin University, Orangeburg, SC, U.S.A.

INTEGRATED PEST MANAGEMENT 300-P1 Effect of in-furrow fungicides and planting date on corn seedling diseases and yield in Kentucky. N. R. ANDERSON,

University of Kentucky, Princeton, KY, U.S.A.

301-P1 Integrated use of brassica seed meal and cultivar resistance for management of seedling disease in organic rice production. X. G. ZHOU, Texas A&M AgriLife Research Center, Beaumont, TX, U.S.A.

302-P1 Evaluation of tomato cultivars and OMRI fungicides for late blight. D. PERLA, Michigan State University, East Lansing, MI, U.S.A.

303-P1 Integrating resistance inducers, biopesticides and vermicompost for alternative management of tomato Fusarium wilt in Colombia. M. SOTO-SUÁREZ, Corporación Colombiana de Investigación Agropecuaria, AGROSAVIA, Mosquera, COLOMBIA

304-P1 Variety genetics and oomicide seed treatments effect on stand, health, and yield of soybeans under Phytophthora sojae disease pressure. A. MCCOY, Michigan State University, East Lansing, MI, U.S.A.

305-P1 Effects of cover crops, rotation, and biological control products on soil properties and productivity in organic vegetable production in the Northeast. R. P. LARKIN, USDA ARS, Orono, ME, U.S.A.

306-P1 Evaluation of fungicides and resistant cultivars to reduce use of chlorothalonil for powdery mildew in pumpkin and winter squash. M. T. MCGRATH, Cornell University, Riverhead, NY, U.S.A.

MOLECULAR PLANT-MICROBE INTERACTIONS 307-P1 The RNA-dependent RNA polymerase coding region of turnip crinkle virus contains critical secondary structures

required for efficient replication. R. SUN, The Ohio State University, Wooster, OH, U.S.A.

308-P1 Generation of a Cowpea Severe Mosaic Virus Infectious Clone. F. A. ZAULDA, The Ohio State University, Wooster, OH, U.S.A.

309-P1 Repression of turnip crinkle virus replication by its replication protein p88. S. ZHANG, The Ohio State University, Wooster, OH, U.S.A.

310-P1 Transcriptome analysis of the interaction between Lasiodiplodia theobromae and Theobroma cacao. B. A. BAILEY, Sustainable Perennial Crops Lab., ARS USDA, Beltsville, MD, U.S.A.

311-P1 Role of pil genes in movement and natural competence of the plant pathogen Xylella fastidiosa. M. V. MERFA, Auburn University, Auburn, AL, U.S.A.

312-P1 Understanding the compatible and incompatible host-pathogen interaction of Setosphaeria turcica races with maize leaves by histological studies. B. NAVARRO, University of Göttingen, Göttingen, GERMANY

313-P1 The polyketide synthase VdPKS1 and the transcription factor VdCmr1 are required for pigment production and UV protection in Verticillium dahliae. S. J. KLOSTERMAN, USDA ARS, Salinas, CA, U.S.A.

314-P1 eQTL analysis of Salix purpurea shrub willow in response to Melampsora americana willow rust infection. C. R. CROWELL, Plant Pathology and Plant-Microbe Biology Section, Cornell Agritech, Geneva, NY, U.S.A.

315-P1 small RNA rprA modulates the pathogenesis of Erwinia amylovora. J. PENG, Michigan State University, East Lansing, MI, U.S.A.

317-P1 A sticky situation: elucidating the role of putative adhesins in Ralstonia solanacearum virulence. M. CARTER, University of Wisconsin-Madison, Madison, WI, U.S.A.

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318-P1 The role of Actin Network in the recruitment of host glycolytic proteins for tombusvirus replication. M. MOLHO, University of Kentucky, Lexington, KY, U.S.A.

319-P1 Stringent Response Regulators DksA and ppGpp Positively Regulate Virulence and Host Adaptation of Xanthomonas citri. Y. ZHANG, University of Florida, Lake Alfred, FL, U.S.A.

320-P1 Effects of pospiviroid infection on the hidden half of tomato plants – the roots – and evaluation of methods to reduce crop losses. R. W. HAMMOND, USDA ARS Molecular Plant Pathology Laboratory, Beltsville, MD, U.S.A.

321-P1 To Stem Rot or Not: Gene regulation of Sclerotinia sclerotiorum in the soybean pathosystem. N. M. WESTRICK, University of Wisconsin-Madison, Madison, WI, U.S.A.

322-P1 Amino acids D(168)N, G(215)S, and I(217)V in PIPO of new TuMV isolates affect P3 subcellular localization and pathogenicity in Nicotiana benthamiana. J. HAMMOND, USDA ARS Floral and Nursery Plant Research Laboratory, Beltsville, MD, U.S.A.

323-P1 Amino acids in P1 (A241) and CI (E1459) of a new TuMV isolate from China are associated with induction of stem necrosis in Nicotiana benthamiana. H. JU, Applied Biology, Chungnam National University, Daejeon, KOREA

324-P1 A core component FpDep1 in the Rpd3L histone deacetylase complex is essential for development and virulence in Fusarium pseudograminearum. S. L. DING, Henan Agricultural University, Zhengzhou, CHINA

325-P1 Role of SwnT (the putative transmembrane transporter) of the fungus Slafractonia leguminicola in swainsonine and slaframine transport. S. DAS, New Mexico State University, Las Cruces, NM, U.S.A.

326-P1 The rps10 gene as a new barcode locus for oomycetes and its utility in metagenomics studies of environmental samples. F. N. MARTIN, USDA ARS, Salinas, CA, U.S.A.

328-P1 Understanding the molecular basis of Phytophthora cinnamomi-plant interactions using Nicotiana benthamiana as model system. A. SHANDS, University of California, Riverside, Riverside, CA, U.S.A.

329-P1 Negative regulation of siderophore biosynthesis by a GATA transcription repressor in Alternaria alternata. H. C. LIN, National Chung Hsing University and Academia Sinica, Taichung and Taipei, Taiwan, Taichung, TAIWAN

330-P1 A maize line carrying an O-methyl transferase HIGS construct accumulates lower aflatoxin under field conditions. O. O. OMOLEHIN, Department of Plant Pathology and Crop Physiology, Louisiana State Univ. AgCenter, Baton Rouge, LA, U.S.A.

331-P1 Interaction of bell pepper endornavirus with Colletotrichum sp. and Meloidogyne incognita. C. ESCALANTE GUARDADO, Louisiana State University Agricultural Center, Baton Rouge, LA, U.S.A.

332-P1 In-vitro effect of two digestive enzymes and pH on the dsRNA of endornaviruses of bell pepper and melon. R. A. VALVERDE, Louisiana State University Agricultural Center, Baton Rouge, LA, U.S.A.

333-P1 The role of mating-type genes in pathogenicity of Fusarium graminearum to wheat. A. VIEIRA DE BARROS, University of Kentucky, Lexington, KY, U.S.A. and Departamento de Fitopatologia, Lavras, BRAZIL

334-P1 Importance of Xylella fastidiosa RNA metabolism for cold survival and plant virulence. Y. BARRETO, California State University, Fresno, CA, U.S.A.

335-P1 Characterizing the role Ralstonia solanacearum’s catabolic pathways play in pathogenesis in the xylem & root tomato environment. C. HAMILTON, University of Wisconsin-Madison, Madison, WI, U.S.A.

337-P1 Very long chain fatty acid modification of Liberibacter crescens lipid A may be essential for culturability. M. JAIN, University of Florida, Gainesville, FL, U.S.A.

338-P1 The Subcellular Localization of Ralstonia solanacearum K60 Type III Effectors. R. R. HILES, Purdue University, West Lafayette, IN, U.S.A.

340-P1 Disruption of the Rice Blast genome to identify genes involved in regulation of Reactive Oxygen Species. J. PANCAKE, Plant and Soil Sciences Department, University of Delaware, Newark, DE, U.S.A.

341-P1 Role of type VI secretion system in latent infection of plant pathogens. P. LIYANAPATHIRANAGE, Auburn University, Auburn, AL, U.S.A.

342-P1 Identification of novel Penicillium expansum virulence factors. D. LUCIANO-ROSARIO, University of Wisconsin, Madison, WI, U.S.A.

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343-P1 Assessment of HIGS as a Control Strategy for Sclerotinia Stem Rot in Soybean. D. SHAO, University of Wisconsin-Madison, Madison, WI, U.S.A.

344-P1 Evidence of physiological tolerance and heterogenous resistance to a phage-tail like bacteriocin in Pseudomonas syringae. P. KANDEL, The Pennsylvania State University, University Park, PA, U.S.A.

345-P1 The effect of XopQ and XopJ4 on host specificity varies with the Xanthomonas perforans genetic background. S. TIMILSINA, University of Florida, Gainesville, FL, U.S.A.

346-P1 Multi-disciplinary approaches to identify novel sources of resistance to minor-effect virulence effectors of Xanthomonas oryzae pv. oryzae. A. I. HUERTA, Colorado State University, Fort Collins, CO, U.S.A.

347-P1 Functional analysis and subcellular localization of EF-hand protein in Xanthomonas. S. BIBI, University of Florida, Gainesville, FL, U.S.A.

348-P1 Identification of putative FliA sigma factor motifs in methyl-accepting chemotaxis protein genes of Dickeya dianthicola. A. S. B. NASARUDDIN, Colorado State University, Fort Collins, CO, U.S.A.

349-P1 Net charges at the N-terminus of capsid protein interfere with Potexvirus systemic movement. Z. XIONG, University of Arizona, Tucson, AZ, U.S.A.

350-P1 A tale of two transporters: cellobiose transporters as the key to trigger virulence in the plant pathogenic bacterium Streptomyces scabies. S. GUPTA, California State University, Bakersfield, Bakersfield, CA, U.S.A.

351-P1 Interaction of laccase3 with small heat shock protein 24 of the chestnut blight fungus Cryphonectria parasitica. D. H. KIM, Chonbuk National University, Jeonju, SOUTH KOREA

NEMATOLOGY 352-P1 One plus one does not equal two: the interaction of Ditylenchus dipsaci and Fusarium oxysporum f. sp. cepae. M. R.

MCDONALD, University of Guelph, Guelph, ON, CANADA

353-P1 A novel species of RNA virus identified in the migratory root lesion nematode Pratylenchus penetrans. L. G. NEMCHINOV, USDA ARS MPPL, Beltsville, MD, U.S.A.

354-P1 Effects of secondary metabolites produced by PGPR amended with orange peel on the mortality of second-stage juveniles of Meloidogyne incognita. M. HASSAN, Auburn University, Auburn, AL, U.S.A.

355-P1 Occurrence and distribution of plant-parasitic nematodes of Muscadine grapes in Georgia and North Carolina. G. B. JAGDALE, University of Georgia, Athens, GA, U.S.A.

356-P1 Occurrence of soybean cyst nematode and nematode communities in organically certified fields in central Illinois. J. HAN, University of Illinois at Urbana-Champaign, Urbana, IL, U.S.A.

357-P1 Effects of macroconidial concentration and Heterodera glycines on Fusarium root rot of soybean caused by Fusarium solani and F. tricinctum. H. YAN, Plant Pathology, NDSU, Fargo, ND, U.S.A.

358-P1 Identifying cover crops as non-hosts for management of soybean cyst nematode, Heterodera glycines. G. YAN, North Dakota State University, Department of Plant Pathology, Fargo, ND, U.S.A.

NEW AND EMERGING DISEASES 359-P2 Characterization, pathogenicity, and fungicide sensitivity of Pestalotiopsis spp. on strawberry in the U.S. J. BAGGIO,

Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

360-P2 In silico approach to reveal viral populations in two different pear cultivars using transcriptome data. R. D. JEONG, Chonnam National University, Gwangju, KOREA

362-P2 The role of Pythium spp. in root rot of clary sage in North Carolina. E. REEVES, NC State University, Raleigh, NC, U.S.A.

364-P2 First detection of a phytoplasma associated with witches’ broom of industrial hemp in the United States. J. SCHOENER, Nevada Department of Agriculture, Sparks, NV, U.S.A.

365-P2 Identification and pathogenicity of species of Botryosphaeriaceae causing canker and dieback in apple trees in Chile. G. A. DIAZ, Universidad de Talca, Talca, CHILE

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366-P2 Genetic analyses of the laurel wilt pathogen, Raffaelea lauricola, in Asia provide clues to the source of the clone causing the current USA epidemic. T. J. DREADEN, USDA Forest Service, Lexington, KY, U.S.A.

367-P2 Rapid `ōhi`a death pathogens cause two distinct diseases on Metrosideros polymorpha in Hawai`i. J. JUZWIK, USDA Forest Service, St. Paul, MN, U.S.A.

368-P2 A paradigm shift in the management of invasive alien forest pathogens: The Centers for Forest Pest Control and Prevention. P. BONELLO, The Ohio State University, Columbus, OH, U.S.A.

369-P2 Occurrence of new phytoplasma disease on date palm in Jordan. A. ABU SHIRBI, National Agricultural Research Center, Amman, JORDAN

371-P2 Identification of Cycas necrotic stunt virus (CNSV) in alfalfa (Medicago sativa). P. JIANG, USDA/ARS, Beltsville, MD, U.S.A.

372-P2 In silico and experimental identification of an amalgavirus in U.S. alfalfa (Medicago sativa L.) germplasm. P. JIANG, USDA/ARS, Beltsville, MD, U.S.A.

373-P2 An emerging pathogen (Diaporthe sp.) of hop (Humulus lupulus) associated with foliar necrosis in commercial production yards in Michigan. D. S. HIGGINS, Michigan State University, East Lansing, MI, U.S.A.

375-P2 Fitness, virulence and fungicide sensitivity of a newly reported pome fruit pathogen Phacidium lacerum. K. OZTURK, Washington State University, Wenatchee, WA, U.S.A.

376-P2 Pectolytic bacteria associated with bacterial stem canker disease of hop (Humulus lupulus L.). M. S. WISEMAN, Oregon State University, Corvallis, OR, U.S.A.

378-P2 Biological, pathological and molecular characteristics of a new potyvirus, Dendrobium chlorotic mosaic virus, infecting Dendrobium orchid. F. J. JAN PHD, National Chung Hsing University, Taichung, TAIWAN

379-P2 Pathogenicity, phylogenetics, and cucurbit susceptibility to a soilborne disease complex of winter squash (Cucurbita maxima) in Oregon. H. RIVEDAL, Oregon State University, Hermison, OR, U.S.A.

380-P2 Tar Spot of Corn: Predicting Local Epidemics. D. L. SMITH, University of Wisconsin-Madison, Madison, WI, U.S.A.

381-P2 Tar Spot of Corn: Hybrid Reaction and Susceptibility. M. BROWN, Purdue University, West Lafayette, IN, U.S.A.

382-P2 Tar Spot of Corn: Using Extension and Outreach Tools for Rapid Communication. D. E. P. TELENKO, Purdue University, West Lafayette, IN, U.S.A.

383-P2 Cotton leafroll dwarf virus: An emerging threat to cotton production in GA. S. BAG, University of Georgia, Tifton, GA, U.S.A.

384-P2 Outbreak of Xanthomonas in Ohio – a real Paeonia in the neck. J. LONG, Department of Plant Pathology, The Ohio State University, Columbus, OH, U.S.A.

385-P2 Characterizing Calonectria ilicicola causing red crown rot in Illinois soybeans. N. M. KLECZEWSKI, University of Illinois, Urbana, IL, U.S.A.

386-P2 Marssonina Blotch of Apple Caused by Marssonina coronaria in New York. S. AĆIMOVIĆ, Cornell University, Hudson Valley Research Laboratory, Highland, NY, U.S.A.

387-P2 Two species of Diaporthe cause needle-loss, branch dieback and cankers on Colorado blue spruce (Picea pungens) in Michigan. M. L. SAKALIDIS, Michigan State University, East Lansing, MI, U.S.A.

388-P2 Infection by Neopestalotiopsis spp. occurs on unwounded eucalyptus leaves and is favored by long periods of leaf wetness. R. BELISÁRIO, Universidade Federal de Vicosa, Vicosa, BRAZIL and University of Kentucky, Lexington, KY, U.S.A.

389-P2 Is an invasive forest pathogen moving into a new environment? Phytophthora ramorum found on chaparral plants in Coastal California. W. SCHWEIGKOFLER, Dominican University of California, San Rafael, CA, U.S.A.

390-P2 Characterization pectolytic bacteria associated with blackleg and soft rot in Pennsylvania potatoes. A. MAINELLO, The Pennsylvania State University, University Park, PA, U.S.A.

391-P2 A novel Pyricularia-like species on Microstegium vimineum in Indiana. B. R. LANE, University of Florida, Gainesville, FL, U.S.A.

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392-P2 High-throughput sequencing identifies a new robigovirus in sweet cherry. A. KATSIANI, Aristotle University of Thessaloniki, Thessaloniki, GREECE

393-P2 Pennsylvania Orchards for Rapid Apple Decline. E. V. NIKOLAEVA, Pennsylvania Department of Agriculture, Harrisburg, PA, U.S.A.

394-P2 Study of cotton leafroll dwarf virus in the Mississippi: Year zero. S. SABANADZOVIC, Mississippi State University, Mississippi State, MS, U.S.A.

395-P2 Genetic diversity of tomato brown rugose fruit virus in North America and development of RT-qPCR for species-specific detection. K. S. LING, USDA-ARS, Charleston, SC, U.S.A.

396-P2 Diseases of hydroponic microgreens. J. C. HONG, USDA ARS, United States Horticultural Research Laboratory, Fort Pierce, FL, U.S.A.

397-P2 Discovery of a new Vitivirus in an American hybrid bunch grape cultivar Blanc du Bois in Texas. O. ALABI, Texas AgriLife Research and Extension Center, Weslaco, TX, U.S.A.

398-P2 Identification, prevalence and host specificity of edamame pod diseases in Virginia. S. L. RIDEOUT, Virginia Tech - Eastern Shore AREC, Painter, VA, U.S.A.

399-P2 Characterization of Botrytis spp. associated with calyx-end rot in apple fruits in Chile. E. E. FERRADA, Universidad Austral de Chile, VALDIVIA, CHILE

400-P2 Phytophthora palmivora: Another threat to English lavender in the United States. D. M. DLUGOS, Clemson University, Clemson, SC, U.S.A.

401-P2 Potato tuber necrosis induced by alfalfa mosaic virus depends on potato cultivars rather than on virus strains. X. NIE, Agriculture and Agri-Food Canada, Fredericton, NB, CANADA

402-P2 Bermudagrass Decline: A Complex Disease. M. A. TUCKER, Mississippi State University, Mississippi State, MS, U.S.A.

403-P2 Tar Spot of Corn: Distinguishing the fungal communities of tar spot and fish-eye symptoms through amplicon sequencing. E. ROGGENKAMP, Michigan State University, East Lansing, MI, U.S.A.

404-P2 Viability of CGMMV recovered from naturally-contaminated cucurbit seeds. R. PEDROZO, Iowa State University, Ames, IA, U.S.A.

405-P2 First detection of Cadophora sp. involved in cranberry fruit rot in Eastern Canada. M. CONTI, Université Laval, Quebec, QC, CANADA

407-P2 Coffee quarantine pathogens: a high risk to the Colombian economy within unrestrained markets and immigration dynamics. C. A. ANGEL, CENICAFE, FNC Colombia, Manizales, COLOMBIA

408-P2 Identification of new ‘Candidatus Liberibacter solanacearum’ haplotypes in Solanum tuberosum and psyllid family Aphalaridae in Klamath Basin, Oregon. K. SWISHER GRIMM, USDA-ARS, Prosser, WA, U.S.A.

409-P2 Full-length genome sequence of Cotton leafroll dwarf virus infecting cotton in Alabama. A. S. AVELAR, University of Arizona, Tucson, AZ, U.S.A.

410-P2 A complex of badnavirus species associated with cacao swollen shoot disease in West Africa: high genetic variability in virus populations. R. RAMOS-SOBRINHO, University of Arizona, Tucson, AZ, U.S.A.

411-P2 Hemp leaf spot, caused by a Bipolaris sp., is a major disease threat for industrial hemp. D. SZARKA, University of Kentucky, Lexington, KY, U.S.A.

412-P2 Distribution and population of viruses in maize (Zea mays) in the United Republic of Tanzania. D. MASSAWE, The Ohio State University, Wooster, OH, U.S.A.

413-P2 Extent and significance of Botryosphaeria and Anthracnose diseases in avocado orchards of California. H. F. AVENOT, University of California Davis, Kearney Agricultural Research & Extension Center, Parlier, CA, U.S.A.

414-P2 Virus survey in California reveals the presence of novel vitiviruses infecting grapevine. A. DIAZ-LARA, University of California-Davis, Davis, CA, U.S.A.

415-P2 Chaetomium globosum, a pathogen of hemp, Cannabis sativa. K. D. GWINN, University of Tennessee, Knoxville, TN, U.S.A.

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416-P2 Characterization of Cytospora species from South Carolina Peach Trees. H. BOATWRIGHT, Clemson University, Clemson, SC, U.S.A.

417-P2 Identification and characterization of Fusarium spp. associated with root rot of dry pea in Montana. S. MOPARTHI, Montana State University, Bozeman, MT, U.S.A.

418-P2 Four new RNA viruses of camellias. S. SABANADZOVIC, Mississippi State University, Mississippi State, MS, U.S.A.

419-P2 Unraveling genetic relationships among Cercospora spp. associated with Cercospora Leaf Blight of soybean: evidence for interspecific hybridization. K. SWIFT, University of Arkansas, Fayetteville, AR, U.S.A.

OUTREACH AND EDUCATION 420-P2 Through the lens of social science: How the IPM Innovation Lab is helping smallholder farmers achieve food security

in the developing world. A. C. FAYAD, Virginia Tech, Blacksburg, VA, U.S.A.

421-P2 Secret relationships with serious consequences: Understanding the endophyte-tall fescue symbiosis. A. FLANAGAN, Noble Research Institute, LLC, Ardmore, OK, U.S.A.

422-P2 Opportunities through the Agricultural Microbiomes Research Coordination Network. J. P. DUNDORE-ARIAS, University of Minnesota, St. Paul, MN, U.S.A.

423-P2 Engaging Florida’s small fruit and vegetable industry with hands-on plant disease identification workshops. M. OLIVEIRA, Gulf Coast Research and Education Center, University of Florida, Wimauma, FL, U.S.A.

424-P2 Future scientists and farmers: Youth outreach to promote concepts of Integrated Pest Management. M. C. HAYSLETT, Iowa State University, Ames, IA, U.S.A.

425-P2 Planting Diversity: Novel Paths for Increasing Diversity and Inclusion in the Plant Sciences and Beyond. J. P. DUNDORE-ARIAS, University of Minnesota, St. Paul, MN, U.S.A.

426-P2 Crop Protection Network: A platform for regional, national and international extension outputs. K. A. WISE, University of Kentucky, Princeton, KY, U.S.A.

PATHOGEN DETECTION, QUANTIFICATION, AND DIAGNOSIS 428-P2 Evaluation of isothermal recombinase polymerase amplification (RPA) to detect the four major soilborne diseases

of strawberry in California nurseries. S. M. MANSOURIPOUR, Strawberry Center, California Polytechnic State University, San Luis Obispo, CA, U.S.A.

429-P2 A probe panel assay for detection and quantification of soil-borne pathogens in soybean fields. L. F. ROCHA, Southern Illinois University, Carbondale, IL, U.S.A.

430-P2 Comparative study of methods for detecting Xylella fastidiosa causing bacterial leaf scorch in blueberry. E. ALI, University of Georgia, Tifton, GA, U.S.A.

431-P2 Rapid species differentiation of Calonectria henricotiae and C. pseudonaviculata by high-resolution melting analysis of PCR products. H. GUO, USDA ARS USNA/Rutgers Univ., Beltsville, MD, U.S.A.

432-P2 Development and application of a real-time RT-PCR assay for the direct detection of potato mop top virus in soil. B. PANDEY, Department of Plant Pathology, North Dakota State University, Fargo, ND, U.S.A.

433-P2 A loop-mediated isothermal amplification (LAMP) assay for rapid detection of Fusarium oxysporum causing fusarium wilt of watermelon. O. HUDSON, University of Georgia, Tifton, GA, U.S.A.

434-P2 Development of AmplifyRP assays for three important grapevine viruses through recombinase polymerase amplification. R. LI, Agdia, Inc., Elkhart, IN, U.S.A.

435-P2 Detection of viable Phytophthora spp. associated with Christmas trees in Michigan using qPCR combined with propidium monoazide (PMA). K. SHIN, Michigan State University, East Lansing, MI, U.S.A.

436-P2 A diagnostic taqman real-time PCR assay for detection and quantification of Colletotrichum theobromicola, causal agent of Boxwood dieback. H. KAUR, Louisiana State University, Baton Rouge, LA, U.S.A.

437-P2 Near complete genome sequence of Tulip virus X obtained by high-throughput sequencing from naturally-infected lemon balm (Melissa officinalis). J. HAMMOND, USDA ARS Floral and Nursery Plant Research Laboratory, Beltsville, MD, U.S.A.

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439-P2 Development of a real-time duplex isothermal assay for the detection of Tobacco rattle virus and an endogenous internal RNA control. B. DAVENPORT, Agdia, Inc., Elkhart, IN, U.S.A.

440-P2 Prevalence and early detection of bermudagrass root-infecting pathogens accessed by novel real-time PCR assays. A. BADIAL, Mississippi State University, Starkville, MS, U.S.A.

441-P2 Protecting the U.S. pome fruit industry from foreign pathogens at the USDA APHIS using high-throughput sequencing technologies. O. P. HURTADO-GONZALES, USDA-APHIS Plant Germplasm Quarantine Program, Beltsville, MD, U.S.A.

442-P2 Connecting diagnostic labs with a system for sharing protocols and maintaining version control. J. H. LAFOREST, Southern IPM Center / UGA, Tifton, GA, U.S.A.

443-P2 Detection of RNA viruses using RT-qPCR and HTS in potato seed-tubers in Antioquia (Colombia). M. MARIN, Universidad Nacional de Colombia sede Medellin, Medellin, COLOMBIA

444-P2 Evaluation of factors associated with real-time PCR quantification of the stubby root nematode Paratrichodorus allius from field soil DNA. G. YAN, North Dakota State University, Department of Plant Pathology, Fargo, ND, U.S.A.

445-P2 Development and validation of a TaqMan PCR method for rapid detection of Phytophthora fragariae in high volume root samples of strawberry. D. BAKKER, Naktuinbouw, Roelofarendsveen, NETHERLANDS

446-P2 A viability-qPCR test for quantifying living pathogens of bacterial spot in tomato seed. H. WANG, Clemson University, Blackville, SC, U.S.A.

448-P2 Tools for early detection and monitoring of the koa wilt pathogen (Fusarium oxysporum f. sp. koae) in Hawai’i. J. DOBBS, Colorado State University, Fort Collins, CO, U.S.A.

449-P2 Targeted early detection of citrus Huanglongbing causal agent ‘Candidatus Liberibacter asiaticus’ before the symptoms expression. S. S. PANDEY, Citrus Research and Education Center, University of Florida, Lake Alfred, FL, U.S.A.

450-P2 Identification of a novel endornavirus in Geranium carolinianum and occurrence in plants within three agroecosystems. R. A. VALVERDE, Louisiana State University Agricultural Center, Baton Rouge, LA, U.S.A.

451-P2 PCR assay for rapidly differentiating aflatoxin-producing taxa in Aspergillus section Flavi. L. R. L. ARONE, University of Arizona, Tucson, AZ, U.S.A.

452-P2 Development of race-specific diagnostic assays for detection of Podosphaera macularis. M. BLOCK, Oregon State University, Corvallis, OR, U.S.A.

453-P2 Development of a qPCR Assay for Hop Powdery Mildew Field Specific Differentiation and Late-Season Dispersal Patterns. C. ROSS, Oregon State University, Corvallis, OR, U.S.A.

454-P2 Fungal pathogens associated with rice seedling disease in the Southern United States. S. P. GAIRE, Texas A&M AgriLife Research Center, Beaumont, TX, U.S.A.

455-P2 Wheat Head Blast Detection Using Deep Convolutional Neural Networks. M. FERNANDEZ CAMPOS, Purdue University, West Lafayette, IN, U.S.A.

456-P2 Improved detection method for the spinach downy mildew pathogen, Peronospora effusa. S. J. KLOSTERMAN, USDA ARS, Salinas, CA, U.S.A.

457-P2 Towards the development of a multiplexed qPCR assay to distinguish Cauliflower mosaic virus (CaMV) infection from GM plants. J. EMERSON, University of California, Davis, CA, U.S.A.

458-P2 Improved detection of Clavibacter michiganensis subsp. sepedonicus using droplet digital PCR. A. O. CHARKOWSKI, Colorado State University, CO, U.S.A.

459-P2 An RNA Extraction Method for Improved Molecular Diagnostics of Plum Pox Virus in PPQ-CPHST Beltsville Laboratory. G. WEI, USDA-APHIS-PPQ-S&T-CPHST, Beltsville, MD, U.S.A.

460-P2 Reliable detection and identification of Tomato brown rugose fruit virus (ToBRFV) and other tobamoviruses in seeds of solanaceae. G. HIDDINK, Enza Zaden Seed Operations BV, Enkhuizen, NETHERLANDS

461-P2 Seed extract TaqMan RT-PCR for high throughput prescreening of ToBRFV in seeds of tomato. H. KOENRAADT, Naktuinbouw, Roelofarendsveen, NETHERLANDS

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462-P2 From Branches to Bands: Detecting TCD with Conventional Gel Electrophoresis. T. STACKHOUSE, University of Tennessee, Knoxville, TN, U.S.A.

463-P2 A spore trap network for the early detection of plant pathogens in Idaho. J. WOODHALL, University of Idaho, Parma, ID, U.S.A.

465-P2 Whole genome analysis for the development of a conventional multiplex PCR for Peronosclerospora species of regulatory concern. M. GALVEZ, Department of Entomology and Plant Pathology, NC State University, Raleigh, NC, U.S.A. and USDA-APHIS-PPQ S&T CPHST, Beltsville, MD, U.S.A.

466-P2 Ultrasensitive and in-situ detection of a plant virus by a nanotube-filtering device and isothermal amplification. J. F. ITURRALDE MARTINEZ, The Pennsylvania State University, University Park, PA, U.S.A.

467-P2 Initial Evaluation of a CANARYTM Biosensor-based Assay for Detection of Potyviruses. R. L. JORDAN, USDA-ARS, USNA, Floral & Nursery Plants Research, Beltsville, MD, U.S.A.

468-P2 Early detection of Bull’s-eye rot (Neofabraea vagabunda) from apple fruits using qPCR in Chile. M. CÁCERES, UNIVERSIDAD DE TALCA, Talca, CHILE

469-P2 Early detection of Bull’s-eye rot (Neofabraea vagabunda) from apple fruits using qPCR in Chile. M. CÁCERES, Universidad De Talca, Talca, CHILE

470-P2 Rose rosette virus detection methodology: Is asymptomatic detection possible? M. K. SHIRES, Texas A&M University, College Station, TX, U.S.A.

471-P2 Development and Validation of a TaqMan qPCR Assay for the Detection of Citrus chlorotic dwarf associated virus. A. ROY, USDA-APHIS-PPQ-S&T-CPHST, Beltsville, MD, U.S.A.

472-P2 Comparative genomics approach to develop a highly reliable duplex TaqMan qPCR assay for sensitive detection of genus Dickeya and Dickeya dianthicola. G. BOLUK, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

473-P2 Application of Classical and Molecular Techniques for Screening Sweetpotato Germplasm Imported into the United States. R. FRENCH MONAR, USDA-APHIS-PPQ-FO-Plant Germplasm Quarantine Program, Beltsville, MD, U.S.A.

474-P2 Robust and highly reliable loop-mediated isothermal amplification (LAMP) assay for specific and sensitive detection of Dickeya solani. M. ARIF, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

475-P2 Multiplex TaqMan qPCR targeting unique genomic regions for specific, sensitive and robust detection of Pectobacterium species and P. parmentieri. E. D. ARIZALA, University of Hawaii, Honolulu, HI, U.S.A.

476-P2 Microbe Finder (MiFi): pathogen detection in metagenomic sequence data. A. ESPINDOLA, Oklahoma State University, Stillwater, OK, U.S.A.

478-P2 Quantification of an atoxigenic strain of Aspergillus flavus (AF36) using real-time PCR. R. JAIME, University of California, Davis, Parlier, CA, U.S.A.

479-P2 Comparison of newly developed ELISA and RT-PCR assays for the detection of all known genetically diverse variants of GLRaV-3. A. DIAZ-LARA, University of California-Davis, Davis, CA, U.S.A.

480-P2 Improved detection of fruit tree viruses and viroids by real-time quantitative PCR. A. DIAZ-LARA, University of California-Davis, Davis, CA, U.S.A.

482-P2 Epidemiological studies of a complex viral infection in red ginger in Hawaiʻi. A. LARREA-SARMIENTO, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

483-P2 Clade-specific detection of Pseudoperonospora cubensis aerial sporangia by spore trapping and quantitative PCR in North Carolina. A. RAHMAN, North Carolina State University, Raleigh, NC, U.S.A.

484-P2 E-probe: A new diagnostic tool for detection of Dichorhaviruses associated with Citrus leprosis syndrome. A. ESPINDOLA, Oklahoma State University, Stillwater, OK, U.S.A.

485-P2 Ficus carica plants displaying severe viral-like symptoms harbor a complex virome. A. LARREA-SARMIENTO, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

486-P2 Metagenome sequence calculator for effective pathogen detection. A. ESPINDOLA, Oklahoma State University, Stillwater, OK, U.S.A.

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487-P2 Detecting viruses and bacteria of grapevine with Microbe Finder (MiFi) and an Oxford Nanopore sequencer. A. ESPINDOLA, Oklahoma State University, Stillwater, OK, U.S.A.

488-P2 Detection of Clavibacter michiganensis and C. michiganensis ssp. nebraskensis using multiplex recombinant polymerase amplification coupled with LFD. A. LARREA-SARMIENTO, University of Hawaii at Manoa,

Honolulu, HI, U.S.A.

489-P2 Enhanced Detection of Bacterial Blights on Common Bean. K. NELSON, Dept. of Plant Pathology, North Dakota State University, Fargo, ND, U.S.A.

PATHOGEN DISPERSAL AND SURVIVAL 490-P2 Aerobiology of Xanthomonas hortorum pv. carotae in carrot seed crops of Central Oregon. J. K. S. DUNG, Oregon

State University, Madras, OR, U.S.A.

491-P2 Does the proximity of corn planted to terminated winter rye cover crop influence seedling disease caused by Pythium? S. KURTZ, Iowa State University, Ames, IA, U.S.A.

492-P2 Dead twigs: a reservoir for Phyllosticta citricarpa inoculum leading to citrus black spot (CBS). M. M. DEWDNEY, University of Florida, Lake Alfred, FL, U.S.A.

493-P2 Cover crop rotation effects on growth and development, seedling disease and yield of corn and soybean in no-till production system. J. N. ACHARYA, Iowa State University, Department of Plant Pathology, Ames, IA, U.S.A.

494-P2 Epidemiology of Cotton leaf roll dwarf virus in Georgia, U.S.A. N. SEDHAIN, University of Georgia, Tifton, GA, U.S.A.

497-P2 Tracking the distribution and spread of the invasive pathogen Fusarium virguliforme in Minnesota. R. HALL, Department of Plant Pathology, University of Minnesota, St. Paul, MN, U.S.A.

498-P2 Movement of ‘Candidatus Liberibacter asiaticus’ and progression of disease in split-root ‘Swingle’ trees. J. D. VELOSO DOS SANTOS PULICI, University of Florida, Lake Alfred, FL, U.S.A.

499-P2 Primary inoculum, etiology, and oospore production of the spinach downy mildew pathogen, Peronospora effusa. B. DHILLON, University of Arkansas, Fayetteville, AR, U.S.A.

500-P2 Bayesian Evolution Analyses Suggests the Global Spread of Xanthomonas cynarae pv. gardneri Occurred During the Global Adoption of Hybrid Tomato Seed. M. JIBRIN, Ahmadu Bello University, Zaria, NIGERIA and University of Florida, Gainesville, FL, U.S.A.

501-P2 Development of a controlled-environment assay for studying tar spot in corn. C. C. GONGORA-CANUL, Purdue University, West Lafayette, IN, U.S.A.

502-P2 Spongospora subterranea detected in commercial peat-based potting mix in the United States. A. C. FULLADOLSA, Colorado State University, Fort Collins, CO, U.S.A.

503-P2 Watermelon green mottle mosaic virus seed transmission and incidence in California. T. PITMAN, University of California, Davis, CA, U.S.A.

PATHOGENICITY AND HOST SPECIFICITY 505-P2 Infection of blueberry cultivar Emerald with a California grapevine strain of Xylella fastidiosa and acquisition by

glassy-winged sharpshooter. M. O’LEARY, USDA-ARS, Parlier, CA, U.S.A.

506-P2 Diversity of Ralstonia solanacearum infecting multiple hosts in Southeast Asia. T. L. KLASS, The Ohio State University, Columbus, OH, U.S.A.

507-P2 Differential fruit colonization patterns of group I and II Acidovorax citrulli strains. M. ZHAO, The University of Georgia, Athens, GA, U.S.A.

508-P2 ‘Candidatus Liberibacter solanacearum’ haplotypes differentially affect seed-potato sprouting. F. WORKNEH, Texas A&M AgriLife Research, Bushland, TX, U.S.A.

509-P2 Norton grapevine resists grapevine vein clearing virus. W. QIU, Missouri State University, Springfield, MO, U.S.A.

510-P2 Spread and host-specificity of tomato ringspot virus on sweet cherry (Prunus avium) in Oregon. L. A. LUTES, Oregon State University, Corvallis, OR, U.S.A.

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511-P2 Pathotypes of Plasmodiophora brassicae, the causal agent of clubroot, in Manitoba and Ontario, Canada, and in North Dakota. M. R. MCDONALD, University of Guelph, Guelph, ON, CANADA

512-P2 Investigating environmental impacts on Phytophthora infestans’ gene expression and virulence. E. LARSON, University of Wisconsin-Madison, Madison, WI, U.S.A.

513-P2 Investigations on host specificity within the Alternaria alternata species complex. M. A. JAYAWARDANA, Michigan State University, East Lansing, MI, U.S.A.

514-P2 Cross pathogenicity of Xanthomonas arboricola pv. pruni in stone fruits in Korea. C. G. BACK, National Institute of Horticultural and Herbal Science, Wanju-gun, Jeollabuk-do, SOUTH KOREA

515-P2 Cross infectivity of powdery mildew isolates originating from hop (Humulus lupulus) and industrial hemp (Cannabis sativa) in New York. B. A. WELDON, Cornell University, Geneva, NY, U.S.A.

516-P2 Morphology and pathogenic variation of 15 Puccinia melanocephala single pustule isolates causing Sugarcane Brown Rust at the Cauca valley in Colombia. C. A. ANGEL, CENICAFE, FNC Colombia, Manizales, COLOMBIA

517-P2 Fitness cost associated with increased aggressiveness of Phytophthora nicotianae on a tobacco genotype with WZ resistance. J. JIN, North Carolina State University, Raleigh, NC, U.S.A.

518-P2 Pathogenesis study of Rhizoctonia solani, sclerotia in Sugar beet. M. E. HAQUE, NDSU The Libraries, Fargo, ND, U.S.A.

519-P2 Pathogenicity tests of fungal isolates from Loblolly pine (Pinus taeda) trees growing in southern Mississippi. F. MREMA, Alcorn State University, Lorman, MS, U.S.A. and Alcorn State University, Lorman, MS, U.S.A.

PATHOGEN-VECTOR/-INSECT INTERACTIONS 520-P2 Infection by ‘Candidatus Liberibacter solanacearum’ haplotypes and psyllid survival in different solanaceous hosts. F.

WORKNEH, Texas A&M AgriLife Research, Bushland, TX, U.S.A.

521-P2 AgriVectors: a systems biology portal for plant pathosystems and arthropod vectors of plant diseases. S. SAHA, Boyce Thompson Institute, Ithaca, NY, U.S.A.

522-P2 Why vectors like mixed infected plants? The more, the better? K. ZHAO, Pennsylvania State University, University Park, PA, U.S.A.

525-P2 Host response of loblolly pine (Pinus taeda) to fungal associates of the southern pine beetle (Dendroctonus frontalis). J. G. DE SOTO, University of Georgia, GA, U.S.A.

526-P2 Grapevine vein clearing virus is prevalent in grape aphids. A. UHLS, Missouri State University, Springfield, MO, U.S.A.

527-P2 Influence of flow dynamics on biofilm formation of Xylella fastidiosa. D. WHITE, University of California, Riverside, Riverside, CA, U.S.A.

528-P2 Population establishment potential and virus transmission efficiency of Montana wheat curl mites and the cereal rust mite. U. MCKELVY, Montana State University, Bozeman, MT, U.S.A.

530-P2 Lonsdalea quercina occurs on insects visiting drippy blight diseased oak trees. R. A. SITZ, U.S. Forest Service, Moscow, ID, U.S.A.

531-P2 Strain specificity of Potato virus Y encoded helper components provides evidences for transmission bias of recombinant strains over ordinary strains. S. MONDAL, Cornell University, Ithaca, NY, U.S.A.

532-P2 Interactions between Fusarium virguliforme and soybean aphid on shared soybean hosts. A. GESKE, University of Minnesota, Department of Plant Pathology, St. Paul, MN, U.S.A.

533-P2 What happens in storage: Mold-moth interactions on conventional and transgenic maize hybrids. J. A. MANDAP, University of the Philippines Los Banos/Iowa State University, Ames, IA, U.S.A.

534-P2 Investigating Virus Acquisition and Transmission Characteristics Resulting in Mixed Infections of Tomato Infecting Begomoviruses (Hemiptera: B.tabaci). A. MCLAUGHLIN, Auburn University, Auburn, AL, U.S.A.

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PHYTOBIOMES 535-P2 Soil microbiomes from two levels of management intensity differ in their capacity to protect a high-value hardwood

from an above-ground pathogen. G. WILLIAMS, Department of Forestry and Natural Resources, Purdue University, West Lafayette, IN, U.S.A.

536-P2 Microbiomes of Xylella fastidiosa infected grapevine in California. J. CHEN, USDA-ARS, Parlier, CA, U.S.A.

537-P2 Carbon amendments alter composition and pathogen-inhibitory capacities of indigenous soil bacterial communities. J. P. DUNDORE-ARIAS, University of Minnesota, St. Paul, MN, U.S.A.

538-P2 The Impact of Soil Diversity on the Tomato Seedling Microbiome. A. VAZQUEZ-CATONI, Department of Plant Pathology, The Ohio State University, Wooster, OH, U.S.A.

539-P2 Bacterial Communities Associated with Soil Health in Wheat. D. C. SCHLATTER, USDA-ARS, Wheat Health, Genetics and Quality Research Unit, Pullman, WA, U.S.A.

541-P2 Effects of cover crops on the soil microbiome in a corn-soybean rotation. A. Y. SROUR, Southern Illinois University, Carbondale, IL, U.S.A.

542-P2 Dynamics of endophyte communities associated with carrot. S. ABDELRAZER, Purdue University, West Lafayette, IN, U.S.A.

543-P2 Comparing approaches for capturing bacterial assemblages associated with symptomatic and asymptomatic mushroom caps. S. MARTINS, The Pennsylvania State University, University Park, PA, U.S.A.

544-P2 Changes of microbial community in the soybean plots treated with biochar and poultry litter. R. B. CALDERON, Benguet State University, PHILIPPINES and Department of Plant Pathology & Crop Physiology, Louisiana State

University, Baton Rouge, LA, U.S.A.

545-P2 Association between soil and root microbiomes and within-farm-spatial-variation of soybean yields I: The bacterial perspective. A. Y. BANDARA, The Pennsylvania State University, University Park, PA, U.S.A.

546-P2 Tare soil microbiome of seed Potato (Solanum tuberosum) varies by geographic location and seed growing operation. K. DELVENTHAL, Oregon State University, Hermiston, OR, U.S.A.

547-P2 Bacterial community response to bacterial spot disease and resistance in tomatoes. A. BIGOTT, University of Wisconsin-Madison, Madison, WI, U.S.A.

548-P2 Dynamics of soil microbial communities associated with cover crops in soybean-corn rotation systems in Nebraska. M. R. MARROQUIN-GUZMAN, University of Nebraska, Lincoln, NE, U.S.A.

549-P2 Interkingdom interactions in the soybean root microbiome with different soybean seed treatments. Z. NOEL, Michigan State University, East Lansing, MI, U.S.A.

PLANT DEFENSE RESPONSE 550-P2 Genome wide identification and characterization of small signaling peptides (SSPs) involved in plant defense against

pathogens. J. FONSECA, The Noble Research Institute, Ardmore, OK, U.S.A.

551-P2 The monocot-specific plasma membrane-associated receptor-like kinase SDS2 controls programmed cell death and immunity in rice. G. L. WANG, Department of Plant Pathology, The Ohio State University, OH, U.S.A.

552-P2 Virulence of Magnaporthe oryzae isolates and resistance to blast disease. C. A. PIZOLOTTO, University of Idaho, Moscow, ID, U.S.A.

553-P2 Dual Transcriptome Analysis Reveals Insights into Innate and Phosphite-Induced Resistance of Tanoak to Phytophthora ramorum. T. KASUGA PHD, USDA ARS CPGRU, Davis, CA, U.S.A.

554-P2 Genetic resistance to fire blight in three pear populations maps to chromosome 2. J. D. ZURN, USDA-ARS NCGR, Corvallis, OR, U.S.A.

555-P2 Does tomato domestication process alters the plant interaction with above-ground pathogens and below-ground beneficial microbes? A. K. JAISWAL, Purdue University, West Lafayette, IN, U.S.A.

556-P2 OsSPL9 regulates rice antiviral response through the miR528-L-ascorbate oxidase (AO) pathway. S. YAO, School of Life Sciences, Peking University, Beijing, CHINA

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557-P2 Age Related Resistance in Arabidopsis in Response to Tobacco Mosaic Virus Infection. M. KAPPAGANTU, University of Maryland, College Park, MD, U.S.A.

559-P2 QTL-seq of young fruit resistance to Phytophthora capsici in cucumber. Y. C. LIN, Michigan State University, East Lansing, MI, U.S.A.

560-P2 Generation of Xanthomonas oryzae PthXo1 mutants to gain insight into TALE-dependent Xo1-mediated resistance in rice. T. BORLAND, Colorado State University, Fort Collins, CO, U.S.A.

561-P2 Bradyrhizobium japonicum IRAT FA3 differentially modulates Arabidopsis thaliana root phenotype in response to abiotic stresses. E. GACHOMO, UC Riverside, Riverside, CA, U.S.A.

562-P2 Resequencing of bottle gourd germplasm and using QTL-Seq to map PRSV-W resistance in bottle gourd (Lagenaria sinceraria). B. CHANDA, USDA-ARS, Charleston, SC, U.S.A.

563-P2 Exogenously applied ROS/RNS scavengers reduce Macrophomina phaseolina-induced lesion development in soybean and sorghum. A. NOOR, Dept. of Plant Pathology, Kansas State University, Manhattan, KS, U.S.A.

564-P2 Functional characterization of a member of Arabidopsis Acyl Carrier Protein in plant defense. Z. ZHAO, The Ohio State University, Columbus, OH, U.S.A.

565-P2 Genetic dissection of rice resistance to sheath blight and bacterial panicle blight using recombinant inbred lines of Jupiter and Trenasse. J. C. ONTOY, Department of Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA, U.S.A.

566-P2 Visualization of TAL effector activity in barley host-cells during Xanthomonas tranlsucens leaf infection. J. BUTCHACAS, Department of Plant Pathology, The Ohio State University, Columbus, OH, U.S.A.

567-P2 Identification of QTL associated with resistance to root-lesion nematode (Pratylenchus neglectus) in wheat using genotyping-by-sequencing. G. SINGH, Department of Plant Pathology, North Dakota State University, Fargo, ND, U.S.A.

569-P2 Photosynthetic cost associated with the inducible defences to Plasmopara viticola in grapevine. A. F. NOGUEIRA JUNIOR, University of Sao Paulo, Piracicaba, BRAZIL

571-P2 Engineering recognition of SCN effector proteases using soybean PBS1-based decoys. A. MARGETS, Indiana University, Bloomington, Bloomington, IN, U.S.A.

572-P2 Pea aphid resistance in the Pisum Core Collection as a potential means to reduce spread of virus in pea production areas. L. D. PORTER, USDA ARS, Prosser, WA, U.S.A.

573-P2 Hormone signaling pathways elicited by Lysobacter enzymogenes C3 induced systemic resistance in soybean. J. WALNUT, University of Nebraska, Lincoln, NE, U.S.A.

575-P2 Using network analysis to uncover interactions between host defense signaling pathways and virulence effectors of Pseudomonas syringae pv. tomato. A. TURO, Ohio State University, Columbus, OH, U.S.A.

576-P2 Transcriptional analysis of spinach cultivars during resistant and susceptible interactions with the downy mildew pathogen, Peronospora effusa. S. L. KANDEL, USDA-ARS, Salinas, CA, U.S.A.

577-P2 Engineering a Decoy Substrate in Soybean to Enable Recognition of the Soybean Mosaic Virus NIa Protease. M. HELM, Indiana University, Bloomington, IN, U.S.A.

578-P2 Investigation of a salicylic acid elicitor formulation in the bacterial leaf blight disease of rice using Synchrotron-based FTIR microspectroscopy. W. THEPBANDIT, Suranaree University of Technology, Nakhon Ratchasima, THAILAND

579-P2 Role of micronutrients on systemic acquired resistance in watermelon against Fusarium oxysporum f. sp. niveum and Meloidogyne incognita. K. KARKI, University of Georgia, Tifton, GA, U.S.A.

580-P2 A high throughput method for determining protease target sequences. T. FRAILIE, Indiana University, Bloomington, IN, U.S.A.

581-P2 In planta expression profiling of Erwinia tracheiphila effector genes to identify pathogenicity and host-specific virulence candidates. O. I. OLAWOLE, Iowa State University (ISU), Ames, IA, U.S.A.

582-P2 The role of polyacetylenic lipids during the interaction between Daucus carota and the necrotrophic fungus Sclerotinia sclerotiorum. P. SANTOS, University of Nevada Reno, Reno, NV, U.S.A.

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583-P2 Elucidating the molecular mechanism of the Ptr-mediated rice blast resistance. W. YIN, The Pennsylvania State University, University Park, PA, U.S.A.

584-P2 Towards Understanding the Molecular Mechanisms Underlying Fhb1-mediated Resistance Against Fusarium graminearum. L. SINGH, University of Maryland, College Park, MD, U.S.A.

585-P2 Redox regulation plays an important role in nitric oxide-mediated regulation of systemic acquired resistance. F. XIA, University of Kentucky, Lexington, KY, U.S.A.

586-P2 Comparative transcriptome analysis between a resistant and a susceptible wild tomato accession in response to Phytophthora parasitica. Z. AFZAL, University of Florida, Apopka, FL, U.S.A.

POPULATION BIOLOGY AND GENETICS 587-P2 Molecular Phylogeny of Fusarium Oxysporum forma specialis elaeidis from Oil Palm Plantations in Cameroon.

T. ROSEMARY KINGE, University of Florida, Gainsville, FL, U.S.A. and The University of Bamenda, Bamenda, CAMEROON

588-P2 Assessing the occurrence of bacterial spot of tomatoes in Illinois and identifying species causing the disease. S. KHANAL, University of Illinois at Urbana Champaign, Urbana, IL, U.S.A.

589-P2 Molecular identification and comparison of Sclerotium cepivorum isolates causing Allium white rot in Nevada. S. WANG, Nevada Dept. of Agric., Sparks, NV, U.S.A.

590-P2 Shifts in the blueberry stem blight pathogen complex and the appearance of fungicide resistant isolates. J. J. POLASHOCK, USDA ARS, Chatsworth, NJ, U.S.A.

591-P2 Pythium Pathogens of Common Bean in North Dakota and Minnesota. R. C. POORE, North Dakota State University, ND, U.S.A.

592-P2 Molecular characterization of recombinant Potato virus Y (PVY) in potato from South Korea, PVYNTN strain. A. V. KARASEV, University of Idaho, Moscow, ID, U.S.A.

593-P2 Molecular and morphological identification of Fusarium species associated with black pepper (Piper nigrum L.) in the main areas of Costa Rica. M. BLANCO-MENESES, Universidad de Costa Rica, San Jose, COSTA RICA

594-P2 Genetic Diversity of Grapevine leafroll-associated virus 3 in Washington State vineyards. A. MITRA, Washington State University-Prosser, Prosser, WA, U.S.A.

595-P2 Survey of viruses found in grapevine cultivars grown in Missouri. J. E. SCHOELZ, University of Missouri, Columbia, MO, U.S.A.

596-P2 Survey of soilborne diseases in Ohio tomato high tunnels. M. BOSQUES-MARTÍNEZ, The Ohio State University, Wooster, OH, U.S.A.

597-P2 Identification and pathogenicity of Lasiodiplodia species from grapefruit in Florida. M. M. DEWDNEY, University of Florida, Lake Alfred, FL, U.S.A.

599-P2 Botryosphaeriaceae from diseased and healthy Macadamia trees in South Africa. A. MADUKE, Agricultural Research Council, Pretoria, SOUTH AFRICA and Forestry Agricultural and Biotechnology Institute (FABI), Pretoria, SOUTH AFRICA

600-P2 Characterization of Pseudomonas syringae pv. papulans strains isolated from ‘NY-1’ apple fruit in New York. S. AĆIMOVIĆ, Cornell University, Hudson Valley Research Laboratory, Highland, NY, U.S.A.

601-P2 Population Diversity of the Hop Powdery Mildew Pathogen (Podosphaera macularis) Suggests Continental Spread of the Pathogen. D. H. GENT, U.S. Department of Agriculture, Agricultural Research Service, Corvallis, OR, U.S.A.

604-P2 Spread of the famine lineage of Phytophthora infestans into the African and Asian continents. J. RISTAINO, North Carolina State University, Raleigh, NC, U.S.A.

605-P2 A preliminary investigation into the genetic diversity of Fusarium species causing Fusarium head blight (FHB) of wheat in Georgia and Alabama. B. GHIMIRE, Department of Plant Pathology, University of Georgia-Griffin Campus, Griffin, GA, U.S.A.

606-P2 Global Population structure of Fusarium virguliforme based on microsatellite marker analysis. H. TIAN, Purdue University, West Lafayette, IN, U.S.A.

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607-P2 Investigating the genetic structure of Pseudoperonospora cubensis populations after single-product fungicide application events. K. D’ARCANGELO, North Carolina State University, Raleigh, NC, U.S.A.

608-P2 Diversity of Colletotrichum species on tea (Camellia sinensis) from three counties in Florida. J. ORROCK, University of Florida, Gainesville, FL, U.S.A.

609-P2 Characterization of bacterial leaf streak of corn in Minnesota. D. K. MALVICK, University of Minnesota, Department of Plant Pathology, St. Paul, MN, U.S.A.

610-P2 Characterization of Stemphylium spp. from spinach based on molecular data, host response, and azoxystrobin sensitivity. K. SPAWTON, Washington State University, Mount Vernon, WA, U.S.A.

611-P2 Sweet corn production in the Columbia Basin of Washington: Causal agents of seedling blights and prevalence of mefenoxam resistance. R. SOLEMSLIE, Washington State University, Mount Vernon, WA, U.S.A.

612-P2 Morphological and Genomic Diversities of Rhizoctonia solani on Sugar beet in the USA. M. E. HAQUE, North Dakota State University, FARGO, ND, U.S.A.

613-P2 Genetic diversity of cucurbit-infecting begomoviruses in Malaysia. Y. J. CHEN, National Chiayi University, Chiayi, TAIWAN

614-P2 Fungicide sensitivity and population structure of Rhizoctonia zeae isolated from soybean and corn in the North Central U.S. N. GAMBHIR, University of Nebraska, Lincoln, NE, U.S.A.

615-P2 Stone fruit commodity survey in Texas monitoring for pests and pathogens of high concern: 2018-2019. B. MEYER, Texas A&M AgriLife Extension Service, College Station, TX, U.S.A.

616-P2 Effect of cucurbit host, production region, and season on the population structure of Pseudoperonospora cubensis in Florida. A. SHIRLEY, UFL Plant Pathology, Wimauma, FL, U.S.A.

617-P2 Genomic microsatellites evidence species diversity and origin of Peronospora tabacina, an important pathogen of tobacco. M. NOWICKI, University of Tennessee, Knoxville, Knoxville, TN, U.S.A.

618-P2 Genetic diversity of the spinach downy mildew pathogen based on hierarchical sampling. C. FENG, University of Arkansas, Fayetteville, AR, U.S.A.

619-P2 Characterizing Pythium associated with Illinois soybean fields. D. CERRITOS-GARCIA, University of Illinois, Urbana, IL, U.S.A.

620-P2 Competition between R. solanacearum sequevars causing Moko disease on banana (Musa acuminata) in Suriname. C. J. CONNER, University of Florida, MREC, Apopka, FL, U.S.A.

621-P2 Utilization of microsatellites for Rhizoctonia solani AG2-2 population genetics. D. H. MINIER, Michigan State University, East Lansing, MI, U.S.A.

622-P2 Diversity and fungicide sensitivity of Phytophthora pathogens of soybean in Illinois. D. CERRITOS-GARCIA, University of Illinois, Urbana, IL, U.S.A.

623-P2 Time-point field sampling of Pythium spp. pathogenic on cucurbits reveals a seasonal change in species recovery. S. TOPOREK, Clemson University, Charleston, SC, U.S.A.

624-P2 Sugarcane cultivars susceptible to orange rust can host sub-populations of Puccinia kuehnii capable of infecting resistant cultivars. G. ECKER, UFSCar, Araras, BRAZIL

625-P2 Genotypic diversity among Botrytis cinerea isolates from California. R. P. NAEGELE, USDA ARS, Parlier, CA, U.S.A.

626-P2 Epidemic dynamics of multiple introductions of the sudden oak death pathogen into Oregon forests. N. CARLESON, Oregon State University, Corvallis, OR, U.S.A.

627-P2 Road Trips for Redbuds: An Assessment of the Genetic Diversity and Spatial Distribution of Cercis canadensis in the US. M. ONY, University of Tennessee, Knoxville, TN, U.S.A.

628-P2 Population structure of Globisporangium cryptoirregulare from Rhododendron Nurseries in Oregon. V. FREIRE-ZAPATA, Oklahoma State University, Stillwater, OK, U.S.A.

629-P2 Fusarium graminearum population-specific differences during wheat infection. T. J. WARD, USDA/ARS/NCAUR, Peoria, IL, U.S.A.

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630-P2 Fumigation-induced shifts in Streptomyces populations in a potato cropping system. L. K. OTTO-HANSON, Univ. of Minnesota-Twin Cities, St. Paul, MN, U.S.A.

631-P2 The Incidence of Grapevine Viruses in Four Texas Blanc du Bois Vineyards. D. N. APPEL, Texas A&M University, College Station, TX, U.S.A.

632-P2 Characterization of pathogenic Streptomyces spp. causing scab in Michigan potato, turnip and beet production. S. MAMBETOVA, Michigan State University, East Lansing, MI, U.S.A.

633-P2 Genetic diversity of Erysiphe necator populations in a center of diversity: a case study of select vineyards in New York State. B. M. KISSELSTEIN, Plant Pathology and Plant-Microbe Biology Section, Cornell AgriTech, Geneva, NY, U.S.A.

634-P2 Genetic diversity of Sorghum mosaic virus isolates from sugarcane in Louisiana, USA. M. P. GRISHAM, USDA, ARS, Sugarcane Research Unit, Houma, LA, U.S.A.

635-P2 Chondrostereum purpureum diversity in symptomatic and reversed plants. D. GRINBERGS, INIA Quilamapu, Chillan, CHILE, and Universidad de Concepción, Chillán, CHILE

636-P2 Development of a reference panel to standardize genotype data of Sclerotinia sclerotiorum. M. R. MARROQUIN-GUZMAN, University of Nebraska, Lincoln, NE, U.S.A.

637-P2 Incidence of bacterial and viral diseases in blueberry in Maryland. R. R. POKHAREL, Maryland Dept. of Agric., Annapolis, MD, U.S.A.

638-P2 Current status of cranberry fruit rot fungi in Massachusetts. S. S. UPPALA, University of Massachusetts-Cranberry Station, East Wareham, MA, U.S.A.

639-P2 Sexual characterization of Magnaporthe oryzae populations associated with winter crops. M. OLIVEIRA, UFSCar, Araras, BRAZIL

641-P2 Diversity and Pathogenicity of Rhizoctonia spp. from the Sandhills Grassland of Nebraska. S. KODATI, University of Nebraska Lincoln, North Platte, NE, U.S.A.

642-P2 Virulence diversity of Puccinia graminis f. sp. tritici in Ethiopia. E. HAILU, Ethiopian Institute of Agricultural Research, Ambo, ETHIOPIA and Department of Plant Pathology, University of Minnesota, St. Paul, MN, U.S.A.

643-P2 The effector diversity and population structure of a United States population of Puccinia striiformis f. sp. tritici. R. LYON, Colorado State University, Fort Collins, CO, U.S.A.

644-P2 Evaluation of discriminatory primers for Fusarium oxysporum f. sp. niveum on Australian and United States Fusarium isolates. K. L. EVERTS, University of Maryland, College Park, Salisbury, MD, U.S.A.

645-P2 Xanthomonas euvesicatoria populations are notably clonal irrespective of distant geographical distribution. A. M. ALVAREZ, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

646-P2 Phylogeny of Dickeya zeae isolated from different hosts and irrigation water using multilocus sequence analysis. G. BOLUK, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

POSTHARVEST PATHOLOGY AND MYCOTOXINS 647-P2 Amylose-free (“waxy”) wheat colonization by Fusarium spp. and response to Fusarium head blight. D. L. FUNNELL-

HARRIS, Food Indus Comp., Lincoln, NE, U.S.A.

649-P2 Changes in the composition of wheat grain at elevated CO2 can influence Fusarium graminearum disease and deoxynivalenol contamination. W. HAY, USDA, Peoria, IL, U.S.A.

650-P2 Effects of sulfur dioxide-emitting polyethylene packaging on postharvest decay and fruit quality of blueberries. S. SAITO, USDA ARS, Parlier, CA, U.S.A.

651-P2 Genetic diversity of Aspergillus flavus and identification of atoxigenic isolates to reduce aflatoxin contamination of chilies in Nigeria. P. SINGH, University of Arizona, Tucson, AZ, U.S.A.

652-P2 Fungal Symbionts Hold Potential for Reducing Mycotoxins and Increasing Resistance to Herbivores in Maize. J. BENNETT, Texas A&M University, College Station, TX, U.S.A.

653-P2 Evaluation of new germplasm associated with reducing losses associated with poor quality grain and organisms present post-harvest. J. FOMBA, Mississippi State University, Stoneville, MS, U.S.A.

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655-P2 Insights on brown rot of chestnuts caused by Gnomoniopsis spp. in Michigan. M. L. SAKALIDIS, Michigan State University, East Lansing, MI, U.S.A.

656-P2 Comparative phenotypic analysis of Fusarium graminearum and Fusarium meridionale affecting maize and wheat in Brazil. F. MACHADO, University of Kentucky, Lexington, KY, U.S.A. and Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, BRAZIL

658-P2 Incidence of potentially toxigenic <i>Fusarium </i> spp. on landraces of corn on Mexican highlands pathosystems. L. M. VÁSQUEZ-SILLER, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila, MEXICO

659-P2 Effect of 1,4-dimethylnaphthalene on fungal and oomycete storage pathogens of potato tubers. C. M. DMYTRYSZYN, Michigan State University, East Lansing, MI, U.S.A.

660-P2 Pre-harvest monitoring of postharvest rot pathogens in European pear. A. NEPAL, Southern Oregon Research and Extension Center, Oregon State University, Central Point, OR, U.S.A.

661-P2 Determining a threshold for use of deoxynivalenol (DON) contaminated durum wheat as seed. A. K. KALIL, North Dakota State University Williston Research Extension Center, Williston, ND, U.S.A.

662-P2 Efficacy of pesticides for mitigating stink bug feeding injury and associated mycotoxin contamination in field corn. J. OPOKU, Virginia Tech Tidewater AREC, Suffolk, VA, U.S.A.

663-P2 Toxigenic to atoxigenic ratios of Aspergillus section Flavi strains and variability in aflatoxin accumulation in groundnut and maize in Mozambique. J. AUGUSTO, Intl. Inst. of Tropical Agriculture (IITA), Nampula, MOZAMBIQUE

664-P2 Effect of soil moisture on sporulation of two aflatoxin biocontrol products at different temperature regimes under controlled environments. R. JAIME, University of California, Davis, Parlier, CA, U.S.A.

PROTEOMICS/METABOLOMICS/GENOMICS 667-P2 Comparative RNAseq and in vitro analysis of Penicillium expansum isolates with varying levels of difenoconazole

sensitivity. W. M. JURICK II PHD, USDA-ARS Food Quality Laboratory, Beltsville, MD, U.S.A.

668-P2 Preliminary study on exogenous NAD+-induced transcriptome changes in vegetable crops by RNA-seq. Y. HUANG, University of Florida, Gainesville, FL, U.S.A.

669-P2 Pathogenic protein networks in Phomopsis longicolla underlying seed decay of soybean. S. LI, USDA ARS CGRU, Stoneville, MS, U.S.A.

670-P2 Maize stripe tenuivirus, full genome sequence completed after nearly half a century of research. D. S. MOLLOV, USDA, Beltsville, MD, U.S.A.

671-P2 Elucidating the barley metabolome during tissue-specific Xanthomonas infection. V. ROMAN-REYNA, The Ohio State University, Columbus, OH, U.S.A.

672-P2 Genomic characterization of beet oak-leaf virus: a putative member of the family Rhabdoviridae. W. M. WINTERMANTEL, USDA-ARS, Salinas, CA, U.S.A.

673-P2 Mitochondrial genome of Phytophthora sansomeana, a soybean root rot pathogen. G. CAI, USDA-ARS, Purdue University, West Lafayette, IN, U.S.A.

674-P2 Comparative Analysis of High-Throughput Sequencing Data Analysis Methodologies and Conventional Testing for the Identification of Quarantine Pathogens. B. ADHIKARI, USDA-APHIS Plant Germplasm Quarantine Program, Beltsville, MD, U.S.A.

675-P2 Genome and transcriptome analyses of the brown rot fungus, Pyrrhoderma noxium, reveal potential enzymes that degrade wood from diverse host trees. M. S. KIM, USDA Forest Service-Pacific Northwest Research Station, Corvallis, OR, U.S.A.

676-P2 Deciphering the pangenome of Macrophomina phaseolina populations from Ohio and Paraguay. H. D. LOPEZ-NICORA, Universidad San Carlos, Asunción, PARAGUAY and The Ohio State University, Columbus, OH, U.S.A.

677-P2 Proteomic Analysis of the Acidovorax citrulli during the Viable but Nonculturable State and Resuscitating Process. Y. KAN, China Agricultural University, Beijing, CHINA

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678-P2 Genome Sequence of Passalora sequoiae, Causal Agent of Needle Blight in Leyland Cypress. W. E. COPES, USDA ARS, Poplarville, MS, U.S.A.

679-P2 Phylogenomic and pangenomic analyses to understand the evolutionary history of Claviceps purpurea and the Claviceps genus. S. WYKA, Colorado State University, Fort Collins, CO, U.S.A.

680-P2 RNASeq: virus infection alters terpenoid biosynthesis in Chenopodium quinoa. N. SOLTANI, University of Tennessee, Knoxville, TN, U.S.A.

681-P2 Completion of the sequence of Maize mosaic virus as the first step towards the construction of an infectious clone of a maize-infecting rhabdovirus. K. MARTIN, North Carolina State University, Raleigh, NC, U.S.A.

682-P2 Copy number variation occurs in all four clonal lineages of the sudden oak death pathogen Phytophthora ramorum. B. KNAUS, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, U.S.A.

683-P2 Virome of Macrophomina phaseolina collected from soybean fields in Mississippi. N. ABOUGHANEM-SABANADZOVIC, Mississippi State University, Mississippi State, MS, U.S.A.

684-P2 Assessing the bias in gene content from resequenced Phytophthora infestans strains where reads do not map to the reference genome. S. SHAKYA, Oregon State University, Corvallis, OR, U.S.A.

685-P2 Comparative genome analyses of four rice-infecting isolates of Rhizoctonia solani belonging to anastomosis group 1-intraspecific group IA (RsAG1-IA). D. Y. LEE, Department of Plant Pathology, The Ohio State University, OH, U.S.A.

686-P2 Host range and molecular characterization of two novel Ralstonia phages - RsoP1EGY and RsoP1IDN. Q. HUANG, Floral and Nursery Plants Research Unit, U.S. National Arboretum, USDA/ARS, Beltsville, MD, U.S.A.

687-P2 Comparative genomic and phylogenomic analyses of the sweetpotato soil rot pathogen, Streptomyces ipomoeae. N. RUSCHEL SOARES, Louisiana State University, Baton Rouge, LA, U.S.A.

688-P2 Monilinia comparative genomics for pathogen diagnosis using gene based markers. K. A. ZELLER, USDA-APHIS-PPQ S&T CPHST, Beltsville, MD, U.S.A.

689-P2 S. Typhimurium strain and tomato genotypes affect the persistence of Salmonella in tomato plants. L. DEBLAIS, The Ohio State University, Food Animal Health Research Program, Wooster, OH, U.S.A.

690-P2 High-throughput sequencing of Phytophthora ramorum Ex-type using long-read MinION nanopore sequencing. S. SRIVASTAVA, Department of Entomology and Plant Pathology, NC State University, Raleigh, NC, U.S.A. and

USDA-APHIS-PPQ S&T CPHST, Beltsville, MD, U.S.A.

691-P2 Full-length infectious clones of Banana bunchy top virus. Z. XIONG, University of Arizona, Tucson, AZ, U.S.A.

692-P2 Identification of host factors interacting with the movement protein of Ourmia melon virus in Arabidopsis. C. ROSA, The Pennsylvania State University, University Park, PA, U.S.A.

693-P2 Genotyping of the downy mildew species Pseudoperonospora cubensis and P. humuli using target genome sequencing. J. BELLO, Michigan State University, East Lansing, MI, U.S.A.

694-P2 Small RNA profile in the Chenopodium quinoa – Cucumber mosaic virus interaction. N. SOLTANI, University of Tennessee, Knoxville, TN, U.S.A.

695-P2 Secretome annotation of the citrus stem end rot fungal pathogen Lasiodiplodia theobromae. E. OZBUDAK, University of Florida, Fort Pierce, FL, U.S.A.

697-P2 Insights into pathogenicity determinants of Clavibacter michiganensis subsp. michiganensis and their effects on disease expression. A. LARREA-SARMIENTO, University of Hawaii at Manoa, Honolulu, HI, U.S.A.

REMOTE SENSING AND SENSOR TECHNOLOGY 698-P2 Blackbird: A novel high-throughput laboratory phenotyping system to quantify incidence and severity of powdery

mildews. D. MARTINEZ, Plant Pathology and Plant-Microbe Biology Section, Cornell AgriTech, Geneva, NY, U.S.A.

699-P2 Impact of zebra chip on crop water-use and efficiency of the Irrigation Scheduling Supervisor Control and Data Acquisition (ISSCADA) System. C. M. RUSH, Texas A&M AgriLife Research, Amarillo, TX, U.S.A.

701-P2 Assessment of plant diseases using an unmanned aerial system with high resolution color and multispectral imagery. L. MCKINZIE, Southern Illinois University, Carbondale, IL, U.S.A.

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702-P2 Differentiating between two clonal lineages of Phytophthora infestans with hyperspectral sensors. K. M. GOLD, University of Wisconsin-Madison, Madison, WI, U.S.A.

703-P2 Spectral and thermal signatures of early infection of peanut with Sclerotium rolfsii. H. L. MEHL, Virginia Tech Tidewater AREC, Suffolk, VA, U.S.A.

705-P2 Phakopsora pachyrizi monitoring by spectral reflectance. E. ZUCHELLI, Universidade de Passo Fundo, Rio Grande Do Sul, BRAZIL

VIROLOGY 706-P2 Known viruses infecting wheat in Oklahoma. A. ALI, Univ. of Tulsa, Tulsa, OK, U.S.A.

707-P2 A collection of curated rose viruses; an important part of the National Clean Plant Network. D. S. MOLLOV, USDA, Beltsville, MD, U.S.A.

708-P2 Survey of virus diseases affecting cucurbits in Taiwan. Y. L. CHAN, World Vegetable Center, TAINAN, TAIWAN

709-P2 Survey for Virus Diseases in Vegetable Crops in Nepal. R. NAIDU, Washington State University, Prosser, WA, U.S.A.

710-P2 Surveys for Citrus tristeza virus in Texas. M. KUNTA, Texas A&M University Kingsville Citrus Center, Weslaco, TX, U.S.A.

711-P2 Is Grapevine rupestris stem pitting-associated virus Involved in Graft incompatibility of Pinot noir Grapevines on 110 Richter Rootstock? M. R. SUDARSHANA, USDA ARS, Davis, CA, U.S.A.

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Plant Health 2019 Program Planning Committee

Program Chair Lindsey J. du Toit, Washington State University

Program Vice Chair Mark L. Gleason, Iowa State University

Plant Health 2019 BoardDirector Amy O. Charkowski, Colorado State UniversityDirector-Elect Paul Esker, The Pennsylvania State UniversityAPS Section Chairs Cruz Avila-Adame, Corteva Agriscience Jose Pablo (JP) Dundore-Arias, University of Minnesota Sydney E. Everhart, University of Nebraska Kelly L. Ivors, Driscoll’s Naidu A. Rayapati, Washington State University Ronald R. Walcott, University of Georgia Jerry E. Weiland, USDA ARS

APS Council President Kira L. Bowen, Auburn UniversityPresident-Elect Lindsey J. du Toit, Washington State UniversityVice President Mark L. Gleason, Iowa State UniversityImmediate Past President Mary E. Palm, USDA APHIS PPQ PHPInternal Communications Officer James M. Bradeen, University of MinnesotaTreasurer Lawrence E. Datnoff, Louisiana State UniversitySenior Councilor-at-Large Gary P. Munkvold, Iowa State UniversityCouncilor-at-Large Peter Sande Ojiambo, North Carolina State UniversityCouncilor-at-Large Katherine L. Stevenson, University of GeorgiaPublications Councilor Niklaus Grünwald, Oregon State UniversityDivisional Councilor Jay W. Pscheidt, Oregon State UniversityExecutive Vice President Amy L. Hope, The American Phytopathological Society

Thank You, Committee Members!

Our incredible members are actively engaged in APS, contributing to various boards, offices, forums, divisions, task forces, editorial boards, working groups, and committees. APS volunteers tackle important issues and cover the breadth of plant science and key policy, program, product, and social priorities. Each plant pathologist is unique, and APS membership offers ways for each member to be involved in the plant pathology community locally and worldwide.

To keep up with all the exciting developments and activities at APS, be sure to maintain your membership. There’s no better time to get involved with a board, office, division, and more than at Plant Health 2019! Check the program schedule for meetings of groups that interest you, and get involved! Thank you for your time and commitment. We look forward to your contributions to the field and the society foryears to come!

Recognition and Thank You

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Congratulations, 2019 APS Award of Distinction & Fellow Award Recipients!Congratulations to this year’s Award of Distinction and the APS Fellows who have been selected for their significant contributions in one or more of the following areas: original research, teaching, administration, professional and public service, and/or extension and outreach. Join us on Sunday, August 4, at 10:00 a.m., in the Opening General Session to celebrate these APS awardees and their accomplishments.

Award of Distinction

Laurence Madden, The Ohio State UniversityLaurence Madden is receiving the Award of Distinction for his seminal research contributions over the past four decades, which have transformed the field of plant disease epidemiology; for his development of models to compare, predict, and understand epidemics and evaluate controls; and for his remarkable service to APS.

Fellows

Ignazio Carbone, North Carolina State UniversityIgnazio Carbone is receiving this award for his significant work on the evolution of aflatoxin biosynthesis and pathogen population structure and analysis. He is a consummate administrator, mentor, and teacher and committed to education, research, and service to deliver science-based knowledge that benefits society.

Wade Elmer, Connecticut Agricultural Experiment StationWade Elmer is receiving this award for his in-depth research on Fusarium diseases and wide-ranging activities on disease management through the study of mineral nutrition and use of fertilizers and for his extensive service to APS.

Dilantha Fernando, University of Manitoba, CanadaDilantha Fernando is receiving this award for his global contributions to plant pathology and agricultural commerce, with a focus on management of blackleg in canola using R-genes. He is dedicated to student training and service both to APS and to the Canadian Phytopathological Society.

Yue Jin, USDA ARS, University of Minnesota Yue Jin is receiving this award for his international leadership in cereal rust research, playing an integral role in establishing the Durable Rust Resistance in Wheat and Borlaug Global Rust Initiative. He led rapid mobilization of research expertise against the stem rust Ug99 race group and has identified new resistance genes.

Sophien Kamoun, The Sainsbury Laboratory, United KingdomSophien Kamoun is receiving this award for his pioneering work in eukaryotic genomics, effector biology, and host-microbe interaction biology and in translating fundamental knowledge to enhance the effectiveness of disease resistance breeding. His strong commitment to teaching and mentoring has engaged the next generation of scientists.

Alex Karasev, University of IdahoAlex Karasev is receiving this award for his outstanding and wide-ranging research on plant virus diseases, with a focus on closteroviruses and potyviruses affecting major vegetable and fruit crops. He is a dedicated teacher and mentor and has provided extensive service to APS.

Linda Kinkel, University of MinnesotaLinda Kinkel is receiving this award for her major contributions to the ecology and evolutionary biology of plant-associated microbes in native and agricultural habitats. She has provided exceptional service to APS in a variety of roles and has been a driving force in developing the interdisciplinary network to advance microbiome science in agriculture.

Ann Lichens Park, USDA NIFAAnn Lichens Park is receiving this award for her exceptional and sustained contributions to plant pathology and plant-microbe biology research through her role as national program leader at the National Institute for Food and Agriculture. Her engagement with other national and international agencies garnered many resources to support research, teaching, and outreach activities.

Sunday Awardees

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Mary Palm, USDA APHISMary Palm is receiving this award for her leadership in regulatory mycology and her broad impact on crop security in the United States through her role as USDA APHIS PPQ pest management program director. She also has fulfilled several high-profile roles within APS, recently culminating her service with a term as APS president.

James Stack, Kansas State UniversityJames Stack is receiving this award for his exceptional vision for and leadership of the National Plant Disease Network and for other biosecurity efforts to protect the global food supply. Similarly, his research in biosecurity and pathogen detection has occupied a unique space and filed an important niche.

Glen Stanosz, University of Wisconsin Glen Stanosz receiving this award for his outstanding research on leaf, stem, and root diseases of forest and nursery crops and his service and outreach in forest health. His award-winning dedication to teaching and mentoring of students and professionals in forestry and tree health will be felt long into the future.

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Congratulations, 2019 APS Excellence and Named Award Recipients!Congratulations to the APS Excellence and Named Award recipients, who have been selected to receive awards in honor of their significant contributions to the science of plant pathology. Join us on Monday, August 5, at 9:30 a.m., in the Plenary Session to celebrate the accomplishments of the following APS awardees. Excellence in Extension Award Beth Gugino, Pennsylvania State UniversityBeth Gugino was selected to receive this award for her leadership of an exceptional extension education and research program, which has translated many integrated strategies and tools for the management of important and emerging diseases of vegetable crops. She is considered to be one of the top extension faculty by stakeholders and colleagues.

Excellence in Industry Award Michael Schwarz, BayerMichael Schwarz was selected to receive this award for his key roles in seed treatment and fungicide development and his sustained leadership in the conceptualization and implementation of sustainable, integrated disease and insect management solutions for many crops and horticultural products of importance in U.S. and international markets.

Excellence in International Service Award Carl “Mike” Deom, University of GeorgiaC. Michael Deom was selected to receive this award for his outstanding achievements and contributions to research on the management of economically significant diseases contributing to food insecurity and poverty in rural communities of developing countries. Especially noteworthy is his role in the development of ground nut cultivars that are resistant to virus diseases.

Excellence in Regulatory Affairs and Crop Security AwardPhil Berger, USDA APHIS (Retired)Phil Berger was selected to receive this award for his sustained leadership in advancing the science of plant pathology and translating this expertise into robust regulatory science outcomes that have enhanced concepts, methods, policies, and programs to protect U.S. agriculture from invasive plant pathogens and other pests and to facilitate global trace.

Excellence in Teaching Award Brett Arenz, University of Minnesota Brett Arenz was selected to receive this award for his innovative and effective teaching style using modern pedagogical approaches and creative experiential learning to educate students, build their awareness of plant pathology, and capture their imaginations. As director of the Plant Disease Clinic, he provides additional inventive and research-focused learning opportunities for students.

Monday Awardees

Notes

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Ruth Allen Award Aiming Wang, Agriculture and Agri-Food Canada, CanadaAiming Wang was selected to receive this award for his seminal contributions to the field of plant virology—notably, his breakthrough discoveries in the coevolutionary “arms race” between potyviruses and plant hosts that showed how plants trigger resistance responses and how viruses can overcome immunity responses to establish infection.

Lee M. Hutchins Award Avijit Roy, USDA APHISAvijit Roy was selected to receive this award in recognition of his significant research contributions investigating the etiology, population biology, transmission, and diagnosis of the Citrus tristeza virus and Citrus leprosis virus complexes. These advances were documented in eight recent research articles published in APS journals.

Noel T. Keen Award for Research Excellence in Molecular Plant Pathology Savithramma Dinesh-Kumar, University of California, DavisSavithramma Dinesh-Kumar was selected to receive this award for his seminal and pioneering research on several aspects of molecular plant-virus interactions—notably, the molecular basis of plant immune responses to pathogen infection, connecting plant defense to chloroplast function and autophagy, and the development of important tools for gene function analysis. His research discoveries have led to the creation of many new paradigms regarding plant immunity.

Syngenta AwardPeter Ojiambo, North Carolina State UniversityPeter Ojiambo was selected to receive this award for his significant research contributions to downy mildew epidemiology, population biology and management, and development of models that describe the spatial and temporal aspects of cucurbit downy mildew epidemics on a landscape scale.

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Congratulations, 2019 APS Foundation Awardees!The APS Foundation is excited to announce the 2019 Foundation Awardees. Special thanks to everyone who donated to the APS Foundation. Your continued support makes these opportunities possible. Be sure to visit the Foundation’s booth to learn more about funding opportunities and to help support future leaders in plant pathology.

Books for the World AwardeesAamna Ishaq, University of the Punjab, PakistanMaria Florencia Lucca, Instituto Nacional de Tecnología Agropecuaria (INTA), ArgentinaFrancisca Okungbowa, University of Benin, NigeriaFaheem Uddin Rajer, Sindh Agriculture University, PakistanLisa Ann Rothmann, University of the Free State, South Africa

J. Artie and Arra Browning Plant Medicine and Health Travel AwardLindsay M. Overmyer, University of Nebraska

Lucy Hastings de Gutiérrez Award for Excellence in Teaching AwardBrett E. Arenz, University of Minnesota

Frank L. Howard Undergraduate Fellowship AwardFranklin Lee Harris, Colorado State University

JANE International Research AwardMaria F. Ratti, ESPOL, Ecuador

JANE International Service AwardCarl M. Deom, University of Georgia

Noel T. Keen Award for Research Excellence in Molecular Plant Pathology AwardSavithramma P. Dinesh-Kumar, University of California, Davis

Mathre Educational EndowmentLindsey P. Burbank, USDA ARS

18th I.E. Melhus Graduate Student Symposium AwardeesPaulina Alatriste, University of KentuckyMorgan Carter, Cornell UniversityKelley Clark, University of CaliforniaStephen P. Cohen, Colorado State UniversityKaren Ferreira Da Silva, University of Nebraska

International Travel AwardTonjock Rosemary Kinge, University of Bamenda, Cameroon

Plant Pathology Experiential Award—Individual AwardAnnakay Diana Newell, University of Arkansas

Schroth Faces of the Future Early Career Professionals Symposium AwardeesJeffrey James Coleman, Auburn UniversityMadeline Dowling, Clemson UniversityKaitlin M. Gold, University of WisconsinLina Maria Quesada, North Carolina State UniversityAlejandro Rojas, University of Arkansas

Raymond J. Tarleton Student Fellowship AwardMei Zhao, University of Georgia

2019 APS Foundation Awards

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José and Silvia Amador Student Travel Award and Evanthia D. and D. G. Kontaxis StudentTravel Award Maria Izabel Costa de Novaes, Louisiana State University

APS Foundation Undergraduate StudentTravel AwardTeddy Borland, Colorado State University

Elsie J. and Robert Aycock Student Travel Award Coralie Farinas, The Ohio State University

Kenneth F. Baker and R. James Cook Student Travel AwardArunabha Mitra, Washington State University

Kenneth and Betty Barker Student Travel Award and Zahir Eyal Student Travel Award Suzette Magdalene Arcibal, University of Idaho

John M. Barnes Student Travel Award and William Moller Student Travel AwardNathaniel Westrick, University of Wisconsin

Myron K. Brakke Student Travel AwardNourolah Soltani, University of Tennessee

William Malcolm Brown, Jr., Student Travel Award and Donald E. Munnecke Student Travel AwardOlanike Omolehin, Louisiana State University

J. Artie and Arra Browning Student Travel AwardEmma Wallace, Pennsylvania State University

C. Lee Campbell Student Travel Award and Dow AgroSciences Student Travel AwardKaylee South, The Ohio State University

Caribbean Division Student Travel AwardJames Orrock, University of Florida

H. J. Dubin Student Travel Award in Honor of the Peace CorpsTaylor Klass, The Ohio State University

Eddie Echandi Student Travel Award and Landis International Student Travel AwardSuzanne Slack, Michigan State University

Forest Pathology Student Travel AwardMegan Buland, University of Georgia

John F. Fulkerson Student Travel AwardJingyu Peng, Michigan State University

Joseph P. Fulton Student Travel Award and Efrat Gamliel-Atinsky Student Travel Award Sara Getson, Michigan State University

Robert W. Fulton Student Travel Award and Joseph M. Ogawa Student Travel AwardSofía Macchiavelli-Girón, University of Wisconsin

Richard Gabrielson Student Travel Award and Eugene E. Saari Student Travel AwardJane Marian Luis, North Carolina State University

Raymond G. Grogan Student Travel AwardAmanda Mainello, Pennsylvania State University

Walter (Doug) Gubler Student Travel AwardBreanne Kisselstein, Cornell University

Dennis Hall Student Travel Award and Malcolm and Catherine Quigley Student Travel AwardTina Wu, University of Wisconsin

Tsune Kosuge Student Travel AwardCorri Hamilton, University of Wisconsin

Stuart D. Lyda Student Travel Award and John F. Schafer Student Travel Award Nikita Gambhir, University of Nebraska

Janell M. Stevens Johnk Student Travel Award Roshni Kharadi, Michigan State University

Stephen A. Johnston Student Travel Award Jeana Hansel, North Carolina State University

Arthur Kelman Student Travel Award Mariama Carter, University of Wisconsin

Joseph Kuc Student Travel AwardKayla Spawton, Washington State University

Raymond D. Martyn Student Travel AwardMichelle Oliveira, University of Florida

Don E. Mathre Student Travel Award and George Herman Starr Student Travel Award Daniel Chen, University of California

Harold “Sande” McNabb, Jr., Student Travel Award and Larry W. Moore Student Travel AwardJeannie Klein-Gordon, University of Florida

John S. Niederhauser Student Travel Award and Harry E. Wheeler Student Travel AwardMegan McCaghey, University of Wisconsin

Albert Paulus Student Travel AwardAidan Shands, University of California

Roger C. Pearson Student Travel AwardEric Larson, University of Wisconsin

2019 Student Travel Awards

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Milt and Nancy Schroth Student Travel AwardYing-Yu Liao, University of Florida

Luis Sequeira Student Travel AwardAmelia Lovelace, University of Georgia

Lisa Shepherd Student Travel AwardMadison Stahr, North Carolina State University

Malcolm C. Shurtleff Student Travel Award Mariela Fernandez Campos, Purdue University

H. David Thurston Student Travel AwardSrikanth Kodati, University of Nebraska

Turfgrass Pathology Student Travel Award Roy Davis, Texas A&M University

Virology Student Travel AwardLauri Lutes, Oregon State University

Gustaaf A. and Ineke C. M. de Zoeten Student Travel Award and Kyung Soo Kim StudentTravel AwardMei Zhao, University of Georgia

The following individuals were recognized throughout the past year at APS division meetings for their contributions to the science of plant pathology, as well as to APS and, in particular, to their divisions. The top awardee from each division participates in the Plant Pathologists of the Future Symposium during the annual meeting.

Caribbean DivisionKarina Elfar, Pontificia Universidad Catolica de Chile, Santiago, CHILE

North Central DivisionTerra Hartman, University of Nebraska-Lincoln, Lincoln, NE

Northeastern DivisionHaley Nolen, University of New Hampshire, Durham, NH

Pacific DivisionDavid Wheeler, Montana State University, Bozeman, MT

Potomac DivisionRachel Brooks, Virginia Tech, Blacksburg, VA

Southern DivisionMadison McCulloch, University of Kentucky, Lexington, KY

APS 2018–2019 Division Awardees

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Thank you for attendingPlant Health 2019

PLATINUM General Information · 2019-07-30 · Support this great cause by donating items or by...

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