Black spot on roses. Photo by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware.
Black spot on rose. Photo by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org.
Crabapple scab on crabapple tree leaves. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware.
Crabapple scab on crabapple fruits. Photo by: Bob Mulrooney, Plant Pathologist, University of Delaware.
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