wild grape

Asked July 1, 2016, 11:08 AM EDT

what is this have never seen this

Ramsey County Minnesota leaf galls

1 Response

The growths on the grape leaves are caused by an aphid like insect. Below is a link to information on it from the University of Minnesota. http://www.extension.umn.edu/garden/insects/find/grape-insect-pests-of-the-home-garden/#GrapePhylloxera