EMERALD ASH BORER AND THE CITY OF AMES RESPONSE...

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EMERALD ASH BORER

AND

THE CITY OF AMES

RESPONSE PLAN

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WHAT IS THE EMERALD

ASH BORER?

• Invasive boring insect with origins

in Asia.

• Destroys ash tree ability to carry

nutrients.

• Mortality rates are at 99%.

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WHAT IS THE EMERALD

ASH BORER?

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HISTORY

2002 – ON, MI 2003 – OH, VA, MD 2004 – IN - VA, MD - Gone 2006 – IL, MD 2007 – WV, PA 2008 – MO, WI, VA, QB 2009 – KY, MN, NY 2010 – IA, TN 2012 – KS, MA, CT 2013 – CO, NC, NH 2014 – AR, NJ

Photos courtesy of www.emeraldashborer.info

2015 – LA

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HISTORY

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WHERE IS IT IN IOWA?

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HOW DOES IT MOVE?

Adult Borers can fly up to a half

mile between trees.

Estimated movement of 2 to 10

miles per year.

Firewood

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COMMON SYMPTOMS

OF EAB

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COMMON SYMPTOMS

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Text Goes Here A tree-lined street in Toledo, Ohio in 2006, before

emerald ash borer infestation and then 2009. Credit: Dan

Herms, Ohio State University

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• 20 Year Plan

• Formal Reevaluation at Year 5

• Combination of Removal and

Treatment

• Phased Removal Process

• Goal is Not to Save Ash Trees, but

to Extend Their Benefits

CITY OF AMES

PUBLIC TREE

RESPONSE PLAN

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• 2,355 Ash Trees in Public ROW and

Targeted Areas of Park System

• Iowa DNR Urban Forester Grant

• 16% of Trees on Public Property

CITY OF AMES

PUBLIC TREE

RESPONSE PLAN

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CITY OF AMES

PUBLIC TREE

RESPONSE PLAN

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REMOVALS

Smart Choice

NOTICE

January 12, 2015

Dear Neighbor,

This notice is to let you know tree removal is planned adjacent to your property. In an

effort to proactively remove ash trees located within the public right of way (the area

between the sidewalk and curb) before they are infected with the Emerald Ash Borer

(EAB), the City of Ames is implementing its EAB Response Plan. This plan was

approved by City Council to circumvent infestation of ash trees with EAB larva.

Millions of ash trees around the country have died from EAB.

CITY OF AMES PLAN: Through proactive removal of ash trees now, new trees will

begin growing in this area very soon. In order to diversify our urban forest, the City will

plant a variety of new tree species. By selectively removing, treating, and replanting

trees over of a period of 20 years, the City will retain as much of its urban canopy as

possible, while remaining fiscally responsible to our citizens.

IN YOUR NEIGHBORHOOD: Ash trees indicated for removal have been identified

because street or utility improvements are planned in the area. Tree removal prior to the

improvements will help save future costs. These trees to be

removed will be posted with notices this winter prior to any work

commencing. Tree removals will take place this winter as weather

allows, and stump removal will follow in the spring of 2015. Larger

trees may be removed by contractor crews in the spring. Any

disturbed area from removals will be restored by the City. New

trees will be planted in 2015. (Please see map on back.)

COMMITMENT TO TREES: Ames, Iowa, has been named a

“Tree City” for more than 40 years. Our community loves trees, and

we will continue to show our commitment to strengthening our urban forest by reacting

quickly when trees are threatened. The EAB Response Plan, a map of ash trees on

public property, and information about the Emerald Ash Borer are available at

www.cityofames.org/trees .

If you have questions about the trees posted for removal, please contact the City of

Ames Public Works Department at 515.239.5160.

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REMOVALS

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• All Trees with Defects

• Defect Trees Removed in 5 Years

• Non Defect Trees

• 6-inch DBH or Less in 5 Years

• Some larger than 6-inch

• Trees in current year CIP Projects

• Removal of Remaining Trees Starting

in Year 6

REMOVALS

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TREES WITH DEFECTS

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PHASED REMOVALS

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PHASED REMOVALS

YEAR 1

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PHASED REMOVALS

YEAR 2

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PHASED REMOVALS

YEAR 3

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PHASED REMOVALS

YEAR 4

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PHASED REMOVAL

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• Tree waste to be chipped, used within

the City, and made available to public.

Needed to buy larger chippers.

• Local compost companies have been

taking left over chips.

• Larger trees may be logged for

firewood available to public.

REMOVALS

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• One for One Replacement

• 1½ inch Trees

• Delay between Removal and Replanting

• Increase Diversity

REPLANTING

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REPLANTING

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• Trunk Injection Only

• Not Spray or Soil Drench Treatments

• Non-defect Trees Receive Treatment

Beginning in Year 1 and continue every

3 years until removal.

TREATMENT

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TREATMENT

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• City Crews

• Tree Removal Under 18-inch DBH during

Winter Months

• Contract Out

• Tree Removal over 18-inch DBH

• Stump Grinding

• Treatment

• Site Restoration

• Replanting

20 YEAR PLAN

COST DEVELOPMENT

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20 YEAR PLAN

COSTS

Total Costs 1st through 5th Year

City Costs - $150,000

Contracted Costs - $1,100,000

Total Costs Across 20 Years

City Costs - $500,000

Contracted Costs - $2,600,000

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• Year 1 and 2 removals are complete.

• Year 1 treatment complete.

• Year 1 replanting complete, Year 2 starts

next week.

STATUS

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• Plan to help water the trees. Don’t just

count on property owners.

• Follow your plan until you are comfortable

with the work.

• Communicate

• Find Civic Partnerships – The Ames

Foundation

LESSONS LEARNED

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• www.cityofames.org/trees

• Map, status, response plan

• www.iowadnr.gov/Environment/Forestry/F

orestHealth/EmeraldAshBorer.aspx

• www.emeraldashborer.info

RESOURCES

http://www.cityofames.org/trees

http://www.iowadnr.gov/Environment/Forestry/ForestHealth/EmeraldAshBorer.aspx

http://www.iowadnr.gov/Environment/Forestry/ForestHealth/EmeraldAshBorer.aspx

http://www.emeraldashborer.info/

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• Justin Clausen

• 515.239.5279

• [email protected]

Questions

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