What is this?

Asked May 26, 2019, 5:33 PM EDT

This is growing on our blackberries. I have never seen this before. Can you tell me what This is?

Douglas County Oregon blackberries

1 Response

Thank you for your question. You can read about these galls in the following Extension article: https://extension.psu.edu/raspberry-diseases-crown-gall-and-cane-gall Not too encouraging but I hope this is helpful. Good luck!