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EAB Treatment Techniques
Curtis M AndrewsI.S.A Certified Arborist – MW0433
WI Pesticide Certified & Licensed – Cat. 3.0, 5.0, 7.1
Episode MMVVI
A NEW HOPE
It is a period of civil war. Certified Arborists, striking withexisting tools of the trade, have won their first victory
against the Emerald Empire.
During the battle, researchers managed to gain insight into theEmpire’s most destructive force, the Larval Stage. The flat-headed borer hidden beneath the tree’s bark, is capable of wiping out the
entire ash population in North America.
Plagued by misinformation spread through The Press, licensed applicators have been handed secret plans to the ravenous Emerald Ash Borer, giving the upper hand to Green Industry Professionals, now able to save the most valuable and
treasured of the Fraxinus race.
A long time ago in a city far,far away….
www.datcpservices.wisconsin.gov
www.emeraldashborer.info
EAB Life Cycle
Larval Stage- June through March- Larvae feed in cambial
layer for 44-47 weeks
Pupal Stage- Begin to pupate in April
- Pupation takes 2-3 weeks
Adult Stage- Emerge May through August
(700-1000 gdd50)- Each adult lives about 2-3 weeks,
laying approx 60-90 eggs
Egg Stage- May into September- Eggs hatch in 1-2 weeks
David Cappaert, MSU, Bugwood.org
ftp.dec.state.ny.us
C. Andrews
ftp.dec.state.ny.us
www.entm.purdue.edu
C. Andrews
Episode IBIOLOGICAL AGENTS
Episode IIORGANICS
Episode IIITRUNK SPRAYS
Episode IVSOIL INJECTABLES
Episode VTRUNK INJECTABLES
Pheromone Traps
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
WoodpeckersPheromone Traps
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Parasitic Wasps
Pheromone Traps
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Woodpeckers
Episode IBIOLOGICAL AGENTS
Episode IIORGANICS
Episode IIITRUNK SPRAYS
Episode IVSOIL INJECTABLES
Episode VTRUNK INJECTABLES
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Azadirachtin (Azadirachta indica)
Timing: Treat in mid-late Spring.
Trunk Injected – optimal performance when injected every year during high infestation levels. (70-80% reduction in larvae)
Episode IBIOLOGICAL AGENTS
Episode IIORGANICS
Episode IIITRUNK SPRAYS
Episode IVSOIL INJECTABLES
Episode VTRUNK INJECTABLES
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Dinotefuran
Mix according to label. Agitate until product is dissolved in
water. Coat the bottom 5’ of trunk with low-
pressure spray until the bark is wet and just beginning to run off.
Avoid treating wet bark or if rain is expected in 4 hours, and trees with thicker bark.
Timing: Treat in mid-late Spring.
Trunk Spray – Uptake relatively quickly but shorter residual as compared to imidacloprid.
Episode IBIOLOGICAL AGENTS
Episode IIORGANICS
Episode IIITRUNK SPRAYS
Episode IVSOIL INJECTABLES
Episode VTRUNK INJECTABLES
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Dinotefuran & Imidacloprid
DinotefuranQuicker uptakeShorter residualTreat prior to main population egg hatch
ImidaclopridSlower uptake (2+months on larger trees)Longer residualTreatments in Spring* and Fall
Dinotefuran & Imidacloprid
Dinotefuran
Imidacloprid
Neonicitinoids
Annual treatment
Either drench or soil inject
Apply near base of trunk
Bind with organic matter
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Dinotefuran & Imidacloprid
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
- Apply (drench or inject) as close to the trunk as possible.
- Remove turf & organic mulch.- Space evenly around trunk.- Inject just beneath turf roots (3-4”)
Dinotefuran & Imidacloprid
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
- Apply (drench or inject) as close to the trunk as possible.
- Remove turf & organic mulch.- Space evenly around trunk.- Inject just beneath turf roots (3-4”)
Dinotefuran
0.2 fl.oz. /dbh” (2F formulations) trees < 15”dbh = 128” DBH /AC/yr0.4 fl.oz./dbh” (2F formulations) trees > 15”dbh = 64” DBH /AC/yr
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Imidacloprid
Don’t forget about the pollinators! Tuesday, January 19th w/ PJ Liesch
Safari 20SG recommended @ 12oz. To treat 65”dbh for EAB = 230” DBH /AC/yr
Understand the limitations and know your rate!
Episode IBIOLOGICAL AGENTS
Episode IIORGANICS
Episode IIITRUNK SPRAYS
Episode IVSOIL INJECTABLES
Episode VTRUNK INJECTABLES
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Azadirachtin - Imidacloprid - Emamectin benzoate
Number of injection sitesLocation of injection sites
Sharp drill bitDrill hole depth
PressureSterilization
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Number of injection sitesLocation of injection sites
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Number of injection sitesLocation of injection sites
Sharp drill bit
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Number of injection sitesLocation of injection sites
Sharp drill bitDrill hole depth
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Number of injection sitesLocation of injection sites
Sharp drill bitDrill hole depth
Pressure
Biological Agents – Organics – Trunk Sprays – Soil Injectables – Trunk Injectables
Number of injection sitesLocation of injection sites
Sharp drill bitDrill hole depth
PressureSterilization
Episode IBIOLOGICAL AGENTS
Episode IIORGANICS
Episode IIITRUNK SPRAYS
Episode IVSOIL INJECTABLES
Episode VTRUNK INJECTABLES
All characters, images, and themes are a work of fiction. Any similarities between the images and ideas presented and known persons, characters or motion pictures is purely coincidental.
[email protected](262) 894-4949
linkedin.com/in/curtismandrews