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
Madrone (
Arbutus menziesii
)-Leaf Gall (Blisters)
Madrone (
Arbutus menziesii
)-Leaf Spots and Blights
Madrone (
Arbutus menziesii
)-Phytophthora Canker
Madrone (
Arbutus menziesii
)-Twig Dieback
Magnolia-Bacterial Blight
Magnolia-Leaf Spots
Magnolia-Verticillium Wilt
Malva
spp.-Rust
Manzanita (
Arctostaphylos manzanita
)-Leaf Spots
Maple (
Acer
spp.)-Anthracnose
Maple (
Acer
spp.)-Bacterial Leaf Spot and Dieback
Maple (
Acer
spp.)-Leaf Blister
Maple (
Acer
spp.)-Leaf Scorch
Maple (
Acer
spp.)-Nectria Canker
Maple (
Acer
spp.)-Leaf Spots
Maple (
Acer
spp.)-Powdery Mildew
Maple (
Acer
spp.)-Tar Spots
Maple (
Acer
spp.)-Verticillium Wilt
Marigold (
Tagetes
spp.)-Black Root Rot
Marigold (
Tagetes
spp.)-Botrytis Blight
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