Maple tree disease - Ask Extension
Something is affecting our maple tree. Can you please identify what this is? See photos. Thanks for your help.
Knowledgebase
Maple tree disease #870187
Asked May 26, 2024, 5:37 PM EDT
Something is affecting our maple tree. Can you please identify what this is? See photos. Thanks for your help.
Douglas County Minnesota
Expert Response
From at least some of the leaves, it looks like your maple may have anthracnose. This is a fungal disease that can be more common in a cooler, wetter spring. See the photos and description in the attached links and compare to what you are seeing. Anthracnose generally has minimal impact on the health of the tree.
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/maple/leavesspots.html
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/maple/leavesspots.html
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/maple/leavesspots.html
https://apps.extension.umn.edu/garden/diagnose/plant/deciduous/maple/leavesspots.html
