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Hortsense fact sheets
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Walnut
Disease
Anthracnose (Blotch)
Blackline
Blight
Thousand cankers disease
Insect
European fruit lecanium
Walnut aphid
Walnut blister mite
Walnut husk fly
Walnut twig beetle
WSU Extension Presents
Hortsense
Fact sheets outline IPM strategies including cultural, mechanical, biological, and chemical methods.
Pesticides listed in the fact sheets are examples of products that are legal for use in Washington.