Disease IPM

This page is devoted to information for identifying and managing disease pests.

Check out the new online version of the Pacific Northwest Plant Disease Management handbook.

azalea leaf and flower gall

bacterial blight

boxwood blight

brown rot

Deny Disease

fig mosaic virus

forsythia stem gall

Gymnosporangium rust on serviceberry

Gymnosporangium rust on Quince

impatiens downy mildew

oak leaf blister

Pacific Coast pear rust

powdery mildew

Ralstonia Alert

Phytophthora ramorum

Rhododendron bud blight

smut on Trillium

white rust on alyssum