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Home > Diseases > Diseases of Trees and Shrubs

Diseases of Trees and Shrubs including Tree Fruit

Anthracnose on maple


apple scab

Apple Scab




powdery mildew on maple

Powdery Mildew

White Pine Blister Rust

White Pine Blister Rust

salt damage on pine

Other Problems

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[Photos, left to right: (anthracnose) Dr. Wayne Sinclair, Cornell University; (apple scab) Clemson University - USDA Cooperative Extension Slide Series,; (galls) William M. Ciesla, Forest Health Management International,; James Solomon, USDA Forest Service,; Steven Katovich, USDA Forest Service,; Steven Katovich, USDA Forest Service,; (powdery mildew) Andrej Kunca, National Forest Centre - Slovakia,; (white pine blister rust) Joseph O'Brien, USDA Forest Service,; (other) University of Minnesota Extension]

It is the policy of the State of Maine to minimize reliance on pesticides. The Maine Department of Agriculture and the Maine IPM Council encourage everyone to practice integrated pest management and to use pesticides only as a last resort. The mention of pesticides in the fact sheets linked to these pages does not imply an endorsement of any product. Be sure that any product used is currently registered and follow all label directions.