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Hortsense fact sheets
| Tree Fruits
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Pear
Disease
Crown gall
European canker (Nectria canker)
Fire blight
Pacific Coast pear rust
Pear trellis rust
Powdery mildew
Pseudomonas blossom blast and dieback
Scab
Stony pit
Virus diseases
Insect
Aphids
Apple-and-thorn skeletonizer
Brown marmorated stink bug
Codling moth
Cutworms and armyworms
Pear psylla
Pear slug (pear sawfly)
Pearleaf blister mite
San Jose scale
Spider mites
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.