Published on: July 15, 2018
What are those curious, colorful, odd-looking growths you've seen growing on oak trees? Ever wonder what those little seeds are that jump around on the ground underneath oak trees in July or August?
You might be surprised to know these growths on oaks are galls caused by different species of gall wasps. Gall wasps are insects which are quite small, and unlike the larger wasp species you may be familiar with, they do not sting people. There are numerous species of cynipid wasps, and they make different shapes and sizes of galls.
Galls are created when a female wasp lays her eggs in branches,...
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Focus Area Tags: Pest Management, Yard & Garden
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