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Red bumps on maple leaves #332151

Asked June 13, 2016, 11:32 PM EDT

My Autumn Blaze maple tree has recently developed red bumps on many of the leaves. Is this something to be concerned about? Should I take any action?

Hennepin County Minnesota

Expert Response

http://www.extension.umn.edu/garden/diagnose/plant/deciduous/maple/leavesgrowths.html

Jackie Froemming - MS, MA Replied June 14, 2016, 10:00 AM EDT

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

Red bumps on maple leaves #332151

Expert Response

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