Every year about midsummer, I start getting a lot of questions from people wanting to know what those white or gray powdery spots are on their plants. They often cover most if not the entire leaf ...

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 ...

New field trials show that it kills a powdery mildew that would otherwise damage vine leaves and destroy grapes. Many urban dwellers don’t realize that mildew is more than the unsightly bane of shower ...

Prevention is key to managing this widespread plant disease. Powdery mildew is a common fungal disease that affects a wide range of plants, identifiable by white to gray powdery spots on plant ...

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 ...