Maple leaf bumps - Ask Extension
I am starting to get bumps on some of the leaves on my Autumn Blaze maple tree. Should I be concerned and is there anything I should do? Thank you.
Knowledgebase
Maple leaf bumps #872540
Asked June 11, 2024, 12:19 AM EDT
I am starting to get bumps on some of the leaves on my Autumn Blaze maple tree. Should I be concerned and is there anything I should do? Thank you.
Hennepin County Minnesota
Expert Response
Hi Rolf,
These are maple leaf galls. There are tiny insects inside of those bumps, but they're harmless and only a cosmetic problem. The tree may lose a few leaves but the galls are no threat to you tree's health.
See more information here:
https://hort.extension.wisc.edu/articles/maple-gall-mites-eriophyidae/
Thanks!
Thank you.
On Tuesday, June 11, 2024 at 08:07:49 PM CDT, Ask Extension <<personal data hidden>> wrote:
You’re welcome!