Small bumps in tree leaves

Asked July 24, 2016, 10:59 PM EDT

Hello, I just noticied one of the tree in yard (pic attached), has some kind of bumps in all its leaves. Pls advise what the issue is and how to rectify?

Hennepin County Minnesota leaf galls trees horticulture

1 Response

Hello,

Those bumps on the leaves are leaf galls. Galls are abnormal plant growths caused by various organisms (insects, mites, nematodes, fungi, bacteria, and viruses).

For more information please follow this link:
http://www.extension.umn.edu/garden/insects/find/insect-and-mite-galls/

Hope this helps.