This plant is infected with two fungal pathogens-Powdery mildew (white, powdery lesions) and Alternaria leaf spot (dark lesions).
Fact Sheets:
Powdery Mildew Diseases of Ornamental Plants
Leaf Spot Diseases of Floricultural Crops
CAFE main line 413-545-4800 is experiencing technical issues.
To contact the Center for Agriculture, Food, and the Environment and its units, please call 413-230-4538.
This plant is infected with two fungal pathogens-Powdery mildew (white, powdery lesions) and Alternaria leaf spot (dark lesions).
Fact Sheets:
Powdery Mildew Diseases of Ornamental Plants
Leaf Spot Diseases of Floricultural Crops