Weird balls on oak tree leafs

Asked July 18, 2016, 10:51 PM EDT

Weird balls on oak tree leafs.

Montgomery County Maryland oaks leaf galls trees

1 Response

The photo you submitted shows galls on the oak leaves. The galls are not harmful to the tree and do not need to be controlled. See our website for photos and more information http://extension.umd.edu/hgic/shade-tree-galls
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