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Rose diseases #876473

Asked July 09, 2024, 10:35 AM EDT

We would like an expert to come to our facility and help identify the diseases on our rose bushes.

Benton County Oregon

Expert Response

We are not able to send people in person to diagnose problems. However your photos are excellent for diagnosis. The first photo, 6182, is rose black spot. https://solvepestproblems.oregonstate.edu/plant-problems/roses/black-spot and https://pnwhandbooks.org/plantdisease/host-disease/rose-rosa-spp-hybrids-black-spot
Photo 6187 is rose mosaic virus, and 6191 looks like more advanced case of the same. https://pnwhandbooks.org/plantdisease/host-disease/rose-rosa-spp-hybrids-rose-mosaic

Signe Danler, Online Home Horticulture Instructor Replied July 10, 2024, 3:07 PM EDT

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This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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