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Leaf drop and bare canes on a trellised rose infected with black spot.

Leaf drop and bare canes on back-lighted trellised rose, Rosa sp. (Rosaceae), infected with black spot, Diplocarpon rosae (Hyphomycetes). Davis CA by JKC. Credit: Jack Kelly Clark — Leaf drop and bare canes on a trellised rose infected with black spot. Credit: Jack Kelly Clark

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