Key TakeawaysPowdery mildew is a common fungal disease that affects a wide range of plants, identifiable by white to gray powdery spots on plant surfaces.Prevention focuses on reducing humidity around ...

“Help, my plant is covered in a white, powdery fungus! What do I do?” First, don’t panic. While powdery mildew may not look pretty, it rarely causes significant damage except in cases of severe ...

Q: Ive got a Diabolo ninebark thats been getting a whitish powder all over the leaves. Eventually the leaves drop. Its looking pretty bad. What should I do? A: The problem is powdery mildew, a fungal ...

Powdery mildew is a fungal disease affecting many plants, causing a white or gray coating on leaves and slowing growth. The fungus thrives in warm, dry weather with high humidity, especially in ...

Roman Gonzalez is the creator of the urban gardening blog MrBrownThumb, founder of the Chicago Seed Library, and a co-founder of One Seed Chicago. Powdery mildew is a widespread and easy to recognize ...