Knowledgebase
Rhubarb mystery #848939
Asked September 07, 2023, 6:48 AM EDT
Bennington County Vermont
Expert Response
Hi Rich,
Since you are an EMG intern, I wanted to share with you that our plant pathologist is out of town and we are having trouble identifying what's going on with your rhubarb. The photo was a bit difficult to discern. Here are some common diseases: https://pnwhandbooks.org/plantdisease/host-and-disease-descriptions?title=rhubarb
I'm wondering if you've seen any evidence of slugs or snails -- the holes on the leaves lead me in that direction... have you seen any slime trails on the leaves?
If you'd like to send in a specimen to the Plant Diagnostic Lab, the team can take a closer look. Instructions and info needed are found on this form: https://www.uvm.edu/sites/default/files/Extension-Community-Horticulture/PDC_Specimen_Worksheet_fillable_form.pdf
Hi Rich, I have opened back up your question and am having Ann Hazelrigg take a look. When I mentioned it to her she asked if you saw any holes at the base of the stalks, a sign of borers. Did you happen to notice anything unusual at the base of the plant? D
Thanks Deb.Aah yes, borers!I will contact the community member where the rhubarb is located and the photo was taken.Thanks again,Rich
Hi Rich,
Your follow-up just came in today. Thanks!
Hopefully the rhubarb does well next year!!