Sugar Maple tree leaf spots and shriveling - Ask Extension
What is wrong with my Sugar Maple tree and how should I treat it? Leaves on some branches have brown spots and are shriveling. Some branches also have...
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Sugar Maple tree leaf spots and shriveling #875411
Asked June 30, 2024, 9:04 PM EDT
What is wrong with my Sugar Maple tree and how should I treat it? Leaves on some branches have brown spots and are shriveling. Some branches also have spots on the branches.
Macomb County Michigan
Expert Response
Good Afternoon,
The white spots are lichens. Lichen do not hurt the tree at all, and if you wetted the trunk while watering grass or the tree itself, it can encourage lichen to grow.
What are lichens and what are they doing on my tree? - MSU Extension
Maples are often infected with fungal diseases. Here is a link that explains the different pathogens and their treatment.
Maple leaf blister and anthracnose: Two diseases of maple leaves - Landscaping (msu.edu)
You can also send in a sample to get a firm diagnosis.
https://www.canr.msu.edu/pestid/
I hope this helps. Thanks for using our service.
The white spots are lichens. Lichen do not hurt the tree at all, and if you wetted the trunk while watering grass or the tree itself, it can encourage lichen to grow.
What are lichens and what are they doing on my tree? - MSU Extension
Maples are often infected with fungal diseases. Here is a link that explains the different pathogens and their treatment.
Maple leaf blister and anthracnose: Two diseases of maple leaves - Landscaping (msu.edu)
You can also send in a sample to get a firm diagnosis.
https://www.canr.msu.edu/pestid/
I hope this helps. Thanks for using our service.
