Because powdery mildew does not significantly affect the health of most plants, treatment is seldom necessary or practical in the home garden. Many gardeners learn to live with the appearance of ...

Mildews are the most common and most devastating diseases infecting cucumbers and other members of the cucurbit family of plants, which include squashes, pumpkins, zucchini and melons. There are two ...

Q: My overwintering chard has started to show a "white powdery" substance covering both front and backsides on some of the leaves. Photos are attached comparing normal and white powdery leaves on the ...