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Minor Pests of Cherry and Their Management

Elizabeth H. Beers Tree Fruit Research & Extension Center

Wenatchee, Washington

110th Washington State Horticultural

Meeting 2 December, 2014 1:15 1:40 pm

Three Rivers Convention Center, Kennewick, WA

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Spotted wing drosophila

Western Cherry Fruit Fly

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Early season - scales

San Jose scale

European Fruit Lecanium

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Early season - Mites

European red mite adult

European red mite eggs on bark

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Early season - Cutworms

Cutworm damage to buds

Pyramidal green fruitworm

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Early season Black Cherry Aphid

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Mid-season - Leafrollers

Obliquebanded leafroller

Pandemis leafroller

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Mid-season - Leafrollers

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Fly larvae vs. moth larvae

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Controlling leafrollers

Overwintering larvae

Summer generation larvae (late

June-early July)

*See DAS for model timing

Target = young larvae

(old larvae hard to kill,

pupae impossible!)

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Post-harvest: Leafminers

Photo M. Doerr

Photo M. Doerr

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Post-harvest: Pearslug

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Post-harvest: Mites

Diapausing McDaniel Mites at base of Cherry Tree

McDaniel Mite damage to

cherry

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Post-harvest: Rust mites

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Borers (moths) - Carpenterworm

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American Plum Borer

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Borers beetles Shothole borers

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Leafhoppers

White apple leafhopper

Rose leafhopper

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Western X disease

Lapin w/WX

Lapin w/WX & LChV1 (infected on left)

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Post-harvest: Leafhoppers

Western X vectors:

Geminate leafhopper -

Colladonus geminatus

Sharp-nosed leafhoppers -

Scaphytopius acutus

Photo M. Quinn

Photo K. Matz

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California WX abatement program 1985-1990

tree inspections

infected tree removal

post-harvest applications of long-residual

insecticides against leafhopper vectors

Most successful:

removal of infected trees

neighboring orchards doing the same

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Little Cherry Disease

Bing w/LChV2 (infected on right)

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Mid-season: Mealybugs Grape mealybug

Apple mealybug

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AMB Parasitoid: Anagyrus sp.

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Apple Mealybug

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Apple mealybug control

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Minor Pests of Cherries

Many, many minor pests

Usually not a problem

until they are