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.

treetopexplorerllc@gmail.com(262) 894-4949

linkedin.com/in/curtismandrews