Thursday, August 28, 2014

Blackberry Knot Gall

August 13th, 2014
Blackberry Knot Gall 
Walton County, Georgia

I spotted this gall on a blackberry stem by the mailbox; it’s a Blackberry Knot Gall. Blackberry Knot Gall is caused by the Blackberry Knot Gall Wasp (Diastrophus nebulosus) which lays eggs in the ridges of the stems of blackberries. Read more about this wasp and the galls at Greg Dodge’s Journal.

Identification source: 

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