My potato plants were doing very well until the recent drenching rains over the last two weeks. Now, they are showing brown spots as pictured. The low...
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Brown spots on potato leaves #933401
Asked May 29, 2026, 7:59 AM EDT
My potato plants were doing very well until the recent drenching rains over the last two weeks. Now, they are showing brown spots as pictured. The lowest leaves are also turning yellow and dropping. What might be causing the brown spots, and if it's some sort of disease, should I trim away affected foliage to help reduce spread?
Hamilton CountyOhio
Expert Response
Good morning, I'm not sure. I just emailed your question & photo to a friend who's a plant pathologist. I'll get back to you with more information. Barb