INTRODUCTION TO ENTOMOLOGY STACEY BEALMEAR · INTRODUCTION TO ENTOMOLOGY STACEY BEALMEAR Extension...
Transcript of INTRODUCTION TO ENTOMOLOGY STACEY BEALMEAR · INTRODUCTION TO ENTOMOLOGY STACEY BEALMEAR Extension...
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INTRODUCTION TO
ENTOMOLOGY
STACEY BEALMEAR
Extension Agent, Urban Horticulture
Yuma County
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Outline
Who Cares About Insects Anyway
Insect Classification
Anatomy and Metamorphosis
Insect Orders
Integrated Pest Management
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Who Cares About Insects?
Pollination (squash, cucumbers, and citrus) Roughly 1/3 possible due to insect pollinators
Decomposition (nutrient recycling)
Insect product (silk, honey, shellac)
Food for humans and other animals
Detrimental (diseases, damage goods…)
•100,000 species of insects in North America
•1,000 in your backyard alone
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The Most Diverse Group
http://www.globalchange.umich.edu/globalchange2/current/lectures/biodiversity/chart1.jpg
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http://byunews.byu.edu/releases/archive04/Nov/crandall/crandall1-h.jpg
Tree of life Where do insects fit?
Kingdom
Phylum
Class
Order
Family
Genus
Species
King Phillip Came Over For Great Spaghetti
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Insect Classification
http://www.biologycorner.com/resources/arthropod_chart.gif
Kingdom = Animalia
Phylum = Arthropoda
Class = Insecta
(Hexapoda)
Order =
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Insect Classification
~30 orders
Grouped by similarities
Morphology and DNA
http://web.pdx.edu/~stul/images/insectdiversitysmall.gif
http://www.sbs.utexas.edu/jcabbott/abbottlab/images/website.jpg
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Insect Classification
Kingdom = Animalia
Phylum = Arthropoda
Class = Insecta
Order = Lepidoptera
Family = Nymphalidae
Genus = Aglais
Species = urticae
http://www.butterfly-guide.co.uk/species/nymphalids/uk8.htm
http://upload.wikimedia.org/wikipedia/commons/7/7c/Nymphalidae8.jpg
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Insect Anatomy and Metamorphosis
http://imagecache2.allposters.com/images/pic/SOM/01-P52~Insect-Metamorphosis-Posters.jpg
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Insect Anatomy
All Insects Have:
3 Body Segments
3 Pairs of Legs
1 Pair of Antenna
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Insect Anatomy
Legs
Important for identification
Always connected from
thorax
http://bugs.bio.usyd.edu.au/Entomology/images/Topics/extMorphology/leg_master.gif
http://web.localnature.com/articles/backyardnature/pics/insectDesign/cockroch.jpg
http://www.backyardnature.net/in_order.htm
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Insect Anatomy
Antennae
Sensory organ
Helps with identification
Copyright © 2007 L. Shyamal, license cc-by-SA 2.5 http://cache.eb.com/eb/image?id=63162&rendTypeId=4
http://www.cynical-c.com/archives/bloggraphics/aedes.jpg
http://upload.wikimedia.org/200px-Ant_SEM.jpg
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Insect Anatomy
Wings
None, one or two sets
Outgrowths of the exoskeleton
Found on the thorax
Important for
identification
http://en.wikipedia.org/wiki/Image:Maybug.jpg
http://www.news.wisc.edu/newsphotos/images/fruit_fly_mont-droso04.jpg
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Insect Anatomy
Mouth Parts
Important for identification
Used to capture, manipulate
and chew food
http://extension.missouri.edu/explore/mastergardener/mg0012.htm
Chewing
Mouthparts
http://z.about.com/d/insects/1/0/A/0/-/-/mouthparts.jpg
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Insect Internal Anatomy
Circulatory system moves nutrients, salts, hormones, and metabolic wastes
Open circulatory system
Insect blood (Hemolymph) does not deliver oxygen
Digestive system extracts nutrients and other substances from the food
Nervous system is a network of specialized "information highway“
Side view of body showing relative position of
circulatory (yellow), digestive (green), and
nervous (blue) systems.
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Insect Internal Anatomy
Respiration: Oxygen is delivered through a group of internal tubes
No veins or arteries
http://www.earthlife.net/insects/images/anatomy/trachea-ts.gif
http://upload.wikimedia.org/wikipedia/commons/thumb/f/f7/Actias_selene_5th_instar_spiracles_sjh.jpg/8
00px-Actias_selene_5th_instar_spiracles_sjh.jpg
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Metamorphosis
(What is it?)
Grow by molting
Juvenile to Adult
Hard outer shell (Exoskeleton)
http://cache.eb.com/eb/image?id=93289&rendTypeId=4
http://www.theplatelady.com/figurines6/6164-armor.jpg
http://www.earthlife.net/insects/anatomy.html
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Hemimetabolism
Incomplete Metamorphosis
~Five nymphal instar
Resemble adults
Lack wings
http://www.saburchill.com/ans02/chapters/chap048.html
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Holometabolism
Complete Metamorphosis
~5 larval instar
Do not resemble adults
Lack wings
http://www.saburchill.com/ans02/chapters/chap047.html
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Metamorphosis
Most go through complete metamorphosis
http://web.pdx.edu/~stul/images/insectdiversitysmall.gif
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Insect Orders
Matthew C. Wilson
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Coleoptera-Beetles
Over 600,000 species have been identified
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Coleoptera-Beetles
Complete metamorphosis
Chewing mouthparts
Two pairs of wings
One hardened (elytra)
One soft
http://www.dkimages.com/discover/previews/877/45001086.JPG
http://www.dkimages.com/discover/previews/916/55046138.JPG
http://www.bccranberrygrowers.com/ipm/images/beetle.jpg
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Coleoptera-Beetles
Larvae with head capsule
and three pairs of legs
C-shaped grubs
http://upload.wikimedia.org/wikipedia/commons/4/4d/Beetle_larvae_filtered_sw.jpg
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Lepidoptera-Butterflies, Moths and
Skippers
Complete metamorphosis
Siphoning mouthparts
Two pairs of membranous
wings
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Lepidoptera-Butterflies, Moths and
Skippers
http://magickcanoe.com/butterfly/skipper-antennae.jpg
http://farm1.static.flickr.com/235/456444401_4ff3f66ad8.jpg
http://magickcanoe.com/blog/2006/06/07/antennae/
Skippers
Butterflies
Moths
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Lepidoptera-Butterflies, Moths and
Skippers
Frenulum
http://www.cals.ncsu.edu/course/ent425/tutorial/frenulum.gif www.austmus.gov.au/factSheets/butterfly_moth.cfm
http://oliviahorner.com/wp-content/uploads/2008/03/giant-leopard-moth.jpg
Moth
http://www.geocities.com/kishan_nie/photos/butterfly1.jpg
Butterfly
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Lepidoptera-Butterflies, Moths and
Skippers
Larvae
Three pairs of true legs
5 or less pairs of prolegs
Prolegs with crochets
http://www.dkimages.com/discover/Home/Animals/Invertebrates/Arthropods/Insects.html
http://www.macrophotos.com/charleskrebs/prolegs.jpg
http://www.dddi.org/enttutorial/keyimmature/keyimmature3.html
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Diptera-Flies
Complete metamorphosis
Sponging/piercing
1 pair of wings
http://www.news.wisc.edu/newsphotos/images/fruit_fly_mont-droso04.jpg
http://www.bccranberrygrowers.com/ipm/images/fly.jpg
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Diptera-Flies
http://rebekahusry.files.wordpress.com/2008/02/mosquito_bite.png
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Diptera-Flies
Larvae lack
Legs
Head capsule
Mouth hooks
http://www.deathonline.net/decomposition/images/250/mouth_hook.jpg
http://upload.wikimedia.org/wikipedia/commons/3/3d/Fruit_fly_larva_01.jpg
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Hymenoptera-Bees, Wasps and Ants
Complete metamorphosis
Chewing mouthparts (Most)
Two pairs of wings
http://photo.bees.net/biology/ch3/mouthparts.jpg
http://www.cals.ncsu.edu/course/ent425.html
Hemuli
http://www.tolweb.org/tree/ToLimages/Fig-1-Aulacid-wings.jpg
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Hymenoptera-Bees, Wasps and Ants
Most with thread waist
http://www.extermital.com/images/Paper%20wasp%20diag.jpg
http://www.kendall-bioresearch.co.uk/general3.htm
http://www.dkimages.com/discover/Home/Animals/Invertebrates/Arthropods/Insects/Bees.html
http://upload.wikimedia.org/wikipedia/commons/c/c5/Ant_closeup.jpg
http://www.ipm.ucdavis.edu/PMG/GARDEN/IMAGES/INVERT/rassawfly.jpg
http://i.pbase.com/u46/crocodile/large/29990428.cooperativeeffort.jpg
Sawfly Larvae: 6-8 prolegs
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Hymenoptera-Bees, Wasps and Ants
Ants or Wasp?
http://www.spc.int/lrd/images/RIFA-ant_small.jpg
http://farm3.static.flickr.com/2110/2123060109_9893091d13_o.jpg
Ants - Pedicel on waist
- Elbowed antennae
http://web.utk.edu/~extepp/profiles/insects/velvetant.htm
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Hemiptera-True Bugs, Cicadas…..
Incomplete metamorphosis
Sucking mouthparts
Two pairs of wings
http://www.ento.csiro.au/education/Assets/images_hemiptera/bug_life_cycle.gif
http://magickcanoe.com/stinkbugs/predatory-stinkbug-3-small.jpg http://www.salk.edu/labs/mnl-t/clh/bug%20RNAi.html
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Hemiptera-True Bugs, Cicadas…..
Half leathery and half membranous wing
http://schmidling.com/lfbug1.jpg
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Hemiptera-True Bugs, Cicadas…..
Suborder Heteroptera- True Bugs
http://www.isledegrande.com/giimages9/largemilkweedbug.jpg
UC Statewide IPM Program
http://farm1.static.flickr.com/90/256658220_65d987dc14.jpg?v=0
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Hemiptera-True Bugs, Cicadas…..
Suborder Auchenorrhyncha- Cicadas and hoppers
http://biology.clc.uc.edu/Fankhauser/Animals/Insects..JPG
http://princesslilo.files.wordpress.com
http://www.inhs.uiuc.edu/~dietrich/leafhopp.gif
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Hemiptera-True Bugs, Cicadas…..
Suborder Sternorrhyncha- Whiteflies, aphids and
scales
http://www.dl-digital.com/images/z_oldimages/2002-10-d28-aphids2-fr4-ed1.jpg
http://www.rbgsyd.nsw.gov.au/__data/assets/image/81041/Scale_insect_on_Bursaria_620.JPG
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Orthoptera-Grasshoppers, Crickets
and Katydids
Incomplete metamorphosis
Chewing mouthparts
Two pairs of wings
http://www.saburchill.com/ans02/chapters/chap048.html
http://www.solarnavigator.net
http://www.nku.edu/~biosci/CostaRica2003/Punta%20Marenco/Day3/Punta%20Marenco1.htm
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Mantodea-Mantids
Incomplete metamorphosis
Chewing mouthparts
Two pairs of wings
http://cache.eb.com/eb/image?id=62575&rendTypeId=4 http://www.ivyhall.district96.k12.il.us/4TH/KKHP/1INSECTS/bugpix/mantis2/NYMPH_5icon.jpg
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Mantodea-Mantids
http://www.finiteinsight.com/redmantis/plumAB_black_hiweb.jpg
http://www.bugsincyberspace.com/mantids/mantid_images/mantis_oothecae_perch.jpg
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Dermaptera-Earwigs
Incomplete metamorphosis
Chewing mouthparts
Two pairs of wings
http://www.orchidboard.com/community/attachments/pests-diseases.jpg
http://www3.telus.net/conrad/images3/ch_8-04a.gif
http://www.earthlife.net/insects/images/orthopta/earwig.jpg
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Thysanoptera-Thrips
Unique metamorphosis
Rasping-Sucking mouthparts
Two sets of wings
http://attra.ncat.org/images/thrips/figure1.jpg
http://www.dpi.qld.gov.au/images/Biosecurity_GeneralPlantHealthPestsDiseaseAndWeeds.jpg
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Time for a break
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Integrated Pest
Management
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Systematic approach to pest management that focuses
first on preventing problems
Monitoring pest populations, identifying pests, educating
yourself and choosing a combination of tactics to keep
pest populations at an acceptable level
Cultural, mechanical, physical, biological and chemical
methods
What is IPM?
http://www.uky.edu/Ag/IPM/teachers/outdoorclassrm/scat.jpg
Holistic view
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Design/Maintenance
Naturalistic
Plant Selection
Well adapted
Plant Placement
Appropriate microclimates
Prevention and Landscape Design
http://www.modernphoenix.net/gatztips.htm
Pest insects love stressed plants!!!!
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Monitoring
Sample twice per week during the growing season
Pests develop quickly under warm conditions and
slower when it is cool
One aphid 75 daughters
Daughters reproduces in two or three days 75
daughters
This is 5,625 aphids in three generation only!
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Monitoring Schemes
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Monitoring Tools
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Identify Injury
Piercing-Sucking Mouthparts
Chewing Mouthparts
Siphoning
Sponging
http://extension.missouri.edu/explore/mastergardener/mg001
2.htm
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Chewed Leaves or Blossoms
Chewing Injury
Defoliation
Shot holes
Margin notching
Skeletonization
Leaf mining
http://www.rainbowscivance.com/graphics/Sycamore_Anthracnose/syc_lead.jpg
http://www.omafra.gov.on.ca/english/crops/facts/00-
095f4.jpg
http://apps.omafra.gov.on.ca/english/graphics/crops/agriphones/uploaded/berry081806f1.
jpg
http://www.hiltonpond.org/images/LeafSkeleton02.jpg
http://www.bgi-
usa.com/images/pests/leafminers_lg.jpg
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Dieback of Shoots, Twigs or Branches
Chewing Injury
Shoot dieback
Branch dieback
Exit holes
http://buckeyegardening.com/images/invasives/bfbshootdieback.j
pg
http://www.emnrd.state.nm.us/fd/santafetrees/images/twigdamage
2.jpg
http://entweb.clemson.edu/cuentres/cesheets/fruit/ce206.jpg
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Chewing Mouthparts
http://cache.eb.com/eb/image?id=65596&rendTypeId=4
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Caterpillars
Pests of many plants Flowers and foliage Injury Caused
Defoliation
Shot holes
Skeletonization
Mining
Bark rippling
Shot and branch dieback
Insect Products
Frass
Protective covers
http://farm3.static.flickr.com/2255/2516808592_a6763d9eff.jpg
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Beetles
Pests of many plants
Flowers and foliage
Injury Caused
Shot holes
Margin notching
Skeletonization
Bark rippling
Bark cracking
Branch dieback
http://images.google.com/imgres
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Leaf Miners
Pests of many plants
Foliage
Injury Caused
Mining
http://farm1.static.flickr.com/104/270060746_7f8d6ed5df.jpg?v=0
http://www.ensisjv.com/Portals/0/sawfly006.jpg
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White Grubs
Pest of many plants
Feed on plant roots
Injury Caused
Wilting
Discoloration
Turf death
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Discolored and Distorted Leaves
Sucking Injury
Stippling
Streaking
Leaf yellowing
Leaf cupping
http://www.apsnet.org/Education/IllustratedGlossary/PhotosS-V/stippling.jpg
http://mrec.ifas.ufl.edu/LSO/images/Thrips/Chilli-
Damage/Chilli%20Thrips.html
http://picasaweb.google.com/gardenpunks/02192007/photo#5033381350461
781570
http://www.rec.udel.edu/Update02/Issue%2013%202002_files/image00
6.jpg
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Piercing-Sucking Mouthparts
http://mrec.ifas.ufl.edu/LSO/images/aphids/APHIDFEEDING.jpg
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Aphids
Pests of many plants Feed on all plant parts Injury caused
Yellowing
Leaf curl
Vector plant disease
Insect products
Shed skins
Honeydew
Sooty mold
Alex Wild
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Whitefly
• Pests of many plants
• Feed on foliage Injury Caused
Yellowing
Leaf curl
Vector plant diseases
Insect Products
Shed skins
Honeydew
Sooty mold
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True Bugs and Hoppers
• Pests of many plants
• Feed on foliage Injury Caused
Stippling
Leaf Cupping
Insect Products
Fecal spots (lace bugs)
http://www.ext.vt.edu/departments/entomology/ornamentals/1-58.jpeg
http://www.brisbaneinsects.com/brisbane_cicadas/images/wpeA7.jpg
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Mealy Bugs
Pests of many plants
Injury Caused
Discoloration
Dieback
Insect Products
Wax
Honeydew
Sooty mold
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Scale Insects
Pests of many plants Feed on many plant parts Injury Caused
Yellowing
Dieback
Insect Products Wax
Honeydew
Sooty mold
Ants found on plant
Steve Hise
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Spider Mites
Pests of many plants Feed on many plant parts Injury Caused
Stippling
Discoloration
Dieback
Insect Products
Webbing
http://entweb.clemson.edu/cuentres/cesheets/veg/ce29.htm
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Rasping-Sucking Mouthparts
http://ag.arizona.edu/yavapai/diagnostics/Assets/Images/Insects/thrips.JPG
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Thrips
Pests of many plants
Flowers and foliage
Injury Caused
Streaking
Cupping
Vector plant diseases
Insect Products
Fecal spots
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Insect Products
Signs
Honeydew
Exoskeletons
Sooty mold
Fecal spots
Silk
Protective cases
Frass
Fluffy white wax
http://ipm.ncsu.edu/cotton/InsectCorner/photos/images/Honeydew_from_aphids.jpg http://mgonline.com/sootymold.jpg
http://oregonstate.edu/dept/nurspest/Images/insects/lacebugdamageoemeleriafecalspotsthumbnailJ
PG.jpg
http://www.biokids.umich.edu/images/signs/build/tent_caterpillar_nes
t.jpg
http://www.oznet.k-state.edu/entomology/extension/KIN/Kin_2007/kin-12/Frass.jpg http://www.uky.edu/Ag/IPM/sponsprj/county02/02marshall/mealybugs.jpg
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Insect Management
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Insect Management
Cultural Control
Physical Control
Biological Control
Chemical Control
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Cultural Control
Right Plant, Right Place
Provide correct care
Spacing
Water
Fertilizer
Pruning
Drainage
pH
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Sanitation
Sanitation
Remove pest source
Clean equipment
Pickup old fruit
Remove alternate hosts
(weeds)
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Physical Control
Row covers
Traps (sticky, pheromone …)
Tilling soil
Heat
Hand removal
Spraying with water
Diatomaceous Earth
Vacuuming
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Biological Controls
The Good Guys!
Protect them from pesticides
Choose least toxic
Spot spray
Avoid spraying plants in bloom
Create habitat for them
Plant a variety of flowers
Ground covers make good
habitat
Beneficial insects also need
water
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Predators
Insect Order Predators Pests controlled
Heteroptera Big-eyed bugs Aphids, leafhoppers, lygus bugs
(nymphs), spider mites
Heteroptera Minute pirate bugs Aphids, spider mites, thrips, immature
stages of many small insects
Heteroptera Assassin bugs Caterpillars, plant bugs
Neuroptera Green lacewings Aphids, leafhoppers, plant bugs
(immature), spider mites, thrips, small
larvae
Diptera Hover flies (syrphid
flies)
Aphids
Coleoptera Lady beetles Aphids, mealy bugs, scales, spider mites
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Big Eyed Bug
Predaceous on a wide variety of small insects
Commercially available
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Convergent Lady Beetle
aphids and occasionally on whiteflies, other soft-
bodied insects and insect eggs
Commercially available
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Green Lacewing
Predaceous on a wide variety of small insects
Commercially available
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Praying Mantis
Generalist predators on wide variety of insects
Commercially available
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Mealybug Destroyer
Mealybugs and scales
Commercially available
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Minute Pirate Bug
Predaceous on a wide variety of small insects
Commercially available
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Syrphid
Predaceous on aphids and other small, soft-bodied
insects
Not commercially available
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Assassin Bug
Predaceous on a wide variety of small to medium-
sized insects
Not commercially available
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Parasitoids
Insect Order Parasitoids Pests controlled
Hymeoptera Ichneumonids,
Braconids, Chalcids,
Mymarids
Aphids (larvae), cutworms, loopers,
omnivorous leaftiers, oriental fruit moths,
tortrix moths
Diptera Tachinids Codling moths, Colorado potato beetles,
corn earworms, cutworms, grasshoppers,
hornworms, imported cabbage worms, plant
bugs, tussock moths, others
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Aphidius
Aphids
Commercially available
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Tachinid Fly
Some are host specific and others have various host
insects
Not commercially available
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Ordering Biological Controls
http://greenmethods.com/site/
The Green Spot Ltd.
93 Priest Rd.
Nottingham, NH
03290-6204 USA
Phone: 603.942.8925
Fax: 603.942.8932
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Chemical Control
A chemical used to kill pests (not always an insect).
Insecticide- Insects
Herbicide- Weeds
Miticide- Mites
Acaricide- Ticks and Mites
Fungicide- Fungus
Rodenticide- Rodents
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Read the label
Follow all directions for
Recommended concentration
Safety
Disposal
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Danger-Warning-Caution
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Safety equipment
Wear the
correct
protective
equipment
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Storage
Store in original container
Tightly closed
Out of reach (children and pets)
Clean, dry, well vented area
Out of sun and freeze
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Disposal
Never dump pesticides
Consult label for proper disposal
Never reuse empty containers
Triple rinse sprayers before storage
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After use
Take off shoes before
entering the house
Wash yourself with soap
and water
Wash clothes
Separate from other
clothes
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Things to Remember
Never spray on a windy day!
If a little is good, more is NOT better!
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Pesticides
Depends on the plants use
Safer brand products
Horticultural oils and soaps
Pyrethrins
http://www.parkorchids.com/safer%20soap.jpg
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Pesticides
Bayer Advanced Products
Systemic insecticide
Imidacloprid
Bacillus thuringiensis
Entomopathogenic bacteria
Caterpillars; some beetle and fly larvae
Larvae stop eating, become limp and shrunken, die and
decompose
http://www.bayeradvanced.com
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Wrap up
Insects are AWESOME
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Questions
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