Pest Management Fact Sheet #5097 Authors: Dr. Alicyn Smart, Dr. Bruce Watt, and Abigayl Novak For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at extension.umaine.edu/publications/. Other Name: Leaf blotch, Leaf spot, Blotch, Rose actinonema, Rose leaf asteroma, and Star sooty mold Pathogen: Diplocarpon rosae (sexual stage)
