Growth on an oak tree - Ask Extension
Hi,
I am seeing growth of some kind on a young oak tree. I've attached a picture, and it is easy to see.
Knowledgebase
Growth on an oak tree #860353
Asked March 02, 2024, 9:38 PM EST
Hi,
I am seeing growth of some kind on a young oak tree. I've attached a picture, and it is easy to see.
Chippewa County Minnesota
Expert Response
Good Morning,
Thank you for contacting the U of M Extension Service.
These are insect galls on your tree. Here is a link from the U of M Extension Yard and Garden website about galls: https://extension.umn.edu/yard-and-garden-insects/insect-and-mite-galls#cynipid-gall-wasps-1346960
As you scroll down, the information is expandable.
These appear to be cynipid gall wasps. Control is generally not suggested.
Good Luck!
