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brown leaves on rosebush #872308

Asked June 09, 2024, 3:51 PM EDT

I just cut 8 dead long stem roses off my bush and have lots of brown leaves.  I have not had this problem before.  What is wrong and what should I do?

Thanks, Randall

Clackamas County Oregon

Expert Response

Thank you for your question, Randall.  There are several fungal and bacterial diseases that infect roses:  https://pnwhandbooks.org/plantdisease/host-disease/rose-rosa-spp-hybrids-leaf-spots-miscellaneous

We cannot diagnose which yours has from only a photo of this quality.  I suggest that you take leaf samples into the Clackamas County Extension office when Master Gardeners are there to examine them.  https://extension.oregonstate.edu/clackamas

Good luck !
An Ask Extension Expert Replied June 11, 2024, 4:44 PM EDT

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