Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Powdery mildew is a disease common in trees that appears as a white powdery ...

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 ...

Powdery mildew on Tatarian maple leaves. Photo courtesy Getty Images. Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey Tree Expert Company in Menlo Park ...

Some of my perennials and a young maple tree have what appears to be a white residue on the leaves. Some of the plants are turning brown, as I would expect them to do in early November. Most of the ...

This column is written by the Master Gardeners of Yolo County each month. It provides answers to selected questions recently asked by Yolo County gardeners. “Ask a Master Gardener” fields questions ...

Our recent spate of hot and cold weather has brought out a late outbreak of powdery mildew. Leaves on roses, lupines, phlox, squash, melons and even maple trees have all picked up the telltale whitish ...

On languid summer days, a milky, sometimes splotchy film of dusty white or gray often creeps over the leaves of trees, shrubs and perennials. This is powdery mildew, one of the most common ...

FORT WAYNE, Ind. (WANE) — Now is the time of year, you’re likely to notice problem insects and plant diseases in your garden. With warmer than average temps, the threat of drought, notwithstanding ...

Due to California’s dry summers, powdery mildews are more prevalent in Marin County than many other leaf-infecting diseases. These fungi affect virtually all kinds of plants: cereals, grasses, ...

Dear Jessica: I believe my 25-year-old peonies have powdery mildew. The stems are white and so are a few of the leaves. I don't see any insects. What is the best way to handle this? -- Rita Stasi, via ...