Autumn Blaze Maple tree - Ask Extension
Recently transplanted an 8 foot Autumn Blaze Maple. Now notice many leaves have tiny red bumps. My internet search suggests they are Maple galls. Base...
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Autumn Blaze Maple tree #875848
Asked July 03, 2024, 3:50 PM EDT
Recently transplanted an 8 foot Autumn Blaze Maple. Now notice many leaves have tiny red bumps. My internet search suggests they are Maple galls. Based on the attached picture what would you suggest I do?
St. Louis County Minnesota
Expert Response
Yes, these look like Maple galls caused by a mite. They are cosmetic in nature and will not affect the health of your tree.
You don’t have to do anything. Mites are everywhere so there is no avoiding them.
https://hort.extension.wisc.edu/articles/maple-gall-mites-eriophyidae/
