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Name: Lisa W.
Status: educator
Age: 30s
Location: N/A
Country: N/A
Date: 2001-2002


Question:
I have several pin oaks that have bare branches. On these bare branches are circular brown balls about 2.5 inches in diameter and it appears to be killing the trees. I broke one open and there were tiny insects and grubs inside. Do you know what this is, will it destroy the trees, and is there a way to get rid of them?


Replies:
You found some insect galls.

Possibly helpful:

http://www.bugwood.org/vermont/

http://www.msue.msu.edu/msue/imp/mod03/01701260.html

http://www.ca.uky.edu/entomology/entfacts/ef408.asp

Anthony R. Brach, Ph.D.



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