A strawberry gall on oak from Todd SC

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There are several growing in the woods behind my house. I’m located in the upstate ( Easley ).

Hi Todd,

this is an insect gall, not a typical growth of the oak; it is called a Wool-sower wasp gall or Strawberry gall, made by the tiny wasp Callirhytis seminator.  It is not common, but not rare either.

I apologize for the delay in my reply. I had software issues that only now have been fixed. Thank you for your patience.


Dr. Steven Hill, Botanist, SCNPS


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