Powdery mildew – or PM – can be a farmer’s worst nightmare. The mildew is easy to spot as it appears on the leaf as a matte-white frost—almost like that fake snow spray you often see around Christmas ...

Q: I’ve had peonies for many years. This fall when I cut them back, some were white, as if covered with mold. Will it affect the plant next year? Should I be doing anything about it? Do you know what ...

It seems to spring up overnight: Powdery mildew. The splotchy white and gray dust covers the leaves and stems of many of the most popular plants. Woody perennials like lilacs, roses, azaleas, ...

“The leaves of my peonies are covered with what appears to be a white mold, with some of the leaves even turning brown already. What is this problem, and will it affect the plants next year? Should I ...

Dear Master Gardener: My begonias are growing in a small shady courtyard and have white mold on the leaves. Can I treat them to get rid of the mold? Answer: Powdery mildews are white to gray powdery ...

Dear Carol: For the past two years, my peonies have gotten white spots on the leaves. This happens after they have finished blooming. Some of the stems are now covered with what appears to be a white ...

The splotchy white and gray dust covers the leaves and stems of many of the most popular plants. Woody perennials like lilacs, roses, azaleas, serviceberry and buckeye are especially susceptible. So ...

Mold and mildew: You may not know exactly what they are but you know one thing for sure—you definitely don't want either one in your home! Whether you think you've spotted the telltale signs of these ...

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