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Hortsense fact sheets
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Hemlock
Disease
Annosus root rot
Phytophthora root rot
Insect
Coneworms
Hemlock scale
Hemlock woolly adelgid
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.