Pacific Northwest Plant Disease Management Handbook
Printed page URL:
https://pnwhandbooks.org/node/415
Plant Disease
Host and Disease Descriptions
Host and Disease Descriptions
Reviewed: March 2023
Aspen (
Populus tremuloides
)-Sooty-bark Canker
Aster-Botrytis Blight
Aster-Leaf Spots
Aster-Powdery Mildew
Aster-Shoot Proliferation and Leafy Gall
Aster-Tomato Spotted Wilt
Aster-Wilt
Aster-Yellows
Azalea (
Rhododendron
spp.)-Botrytis Petal Blight
Azalea (
Rhododendron
spp.)-Cylindrocladium Blight and Root Rot
Azalea (
Rhododendron
spp.)-Leaf and Flower Gall
Azalea (
Rhododendron
spp.)-Leaf Burn
Azalea (
Rhododendron
spp.)-Leaf Scorch
Azalea (
Rhododendron
spp.)-Lime-induced Chlorosis
Azalea (
Rhododendron
spp.)-Nematode, Stunt
Azalea (
Rhododendron
spp.)-Ovulinia Petal Blight
Azalea (
Rhododendron
spp.)-Phytophthora Root Rot and Wilt
Azalea (
Rhododendron
spp.)-Powdery Mildew
Azalea (
Rhododendron
spp.)-Ramorum Leaf Blight
Azalea (
Rhododendron
spp.)-Rust
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