Botrytis blight—Botrytis cinerea
Botrytis blight is a fungus that causes flowers to become spotted or discolored. Buds may rot. Leaves
and shoots discolor, wilt, decay, and drop. Gray brown spore masses are diagnostic. Twigs may die back.
Flower buds may fail to open. The fungus that causes Botrytis blight is favored by high humidity.
Solutions
Remove and dispose of fallen leaves
and debris around plants. Prune out dying tissue. Avoid overhead watering. Thin the plant canopy to improve
air circulation. Provide proper cultural care.
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Botrytis cinerea on roses |
Discolored Peaonia sp. leaves |
Gray brown spore masses are diagnostic |
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