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Dark blotches and yellowing on a rose leaflet infected with black spot, Diplocarpon rosae, fungus.

Dark blotches and yellowing on rose, Rosa sp. (Rosaceae), leaflet infected with black spot, Diplocarpon rosae (Hyphomycetes). Davis CA by JKC. Credit: Jack Kelly Clark — Dark blotches and yellowing on a rose leaflet infected with black spot, Diplocarpon rosae, fungus. Credit: Jack Kelly Clark

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