Grape Vine Disease - Ask Extension
Can you identify the grape vine disease in the attached images? Images were taken on 5/14/2026, so this is early season growth. Thank you!
Knowledgebase
Grape Vine Disease #931757
Asked May 15, 2026, 12:08 AM EDT
Can you identify the grape vine disease in the attached images? Images were taken on 5/14/2026, so this is early season growth. Thank you!
Clackamas County Oregon
Expert Response
Hard to say exactly what this is but it does not look like a disease. Possible herbicide drift (subtle) or just early season growth that can be distorted. Keep an eye on it and see if new growth settles down. For now, no action needed out of what you usually do.
You can look at this web site but the images are of direct contact with problem materials: https://pnwhandbooks.org/plantdisease/host-disease/grape-vitis-spp-chemical-injury
You can look at this web site but the images are of direct contact with problem materials: https://pnwhandbooks.org/plantdisease/host-disease/grape-vitis-spp-chemical-injury
Jay,
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Thanks for your time and opinion. I'll monitor it and see how and if it progresses.
Mark Mulder
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On May 15, 2026, at 12:39 PM, Ask Extension wrote:
