Raised red spots - Maple leaves - Knowledgebase Question

Centreville, VA
Avatar for legionvii
Question by legionvii
May 7, 2006
Dear Mornrovia,

We are newer gardeners and have noticed that our maple tree leaves have small raised red spots. They don't seem to affect the leaves/trees, however just in case, is there something we should be doing.

Thank you in advance for your response.


Answer from NGA
May 7, 2006
Based on your description I suspect it is some sort of gall. These are not uncommon on maples and although they may look odd, usually do not harm the tree. Here is additional information about leaf galls on maples, including a photo. You may need to cut and paste the complete url into your browser to make it work correctly.


If this is not what your tree has, you might consult with your local county extension for a more specific diagnosis. If it is something that requires a chemical control, they will have the most up to date recommendations on what to use and how/when is best to apply it.

Enjoy your gardening!

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