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Black Spot of Rose

Stephen Vann (2010)

Summary

Black Spot is caused by a fungus (Diplocarpon rosae) and is the most important disease of roses in Arkansas. Each year, rose growers need to take steps to battle this serious disease that affects most rose varieties. Hybrid tea roses are the hardest hit, although the fungus may infect all types. This publication explains symptoms, and controls of this disease.