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 appears as white or gray spots on roses, usually during warm, humid conditions. Catching infections early is key to stopping them from spreading by removing diseased parts and applying ...

You might be noticing powdery mildew (a disease that causes a grayish, powdery film on leaves) in your garden. Common plants that could be affected are lilacs, phlox, bee balm, zinnias and nannyberry ...

Q: There’s white stuff all over my crape myrtle foliage and flowers. I’ve never seen it this bad. What is it, and what can I do about it? A: Powdery mildew is the culprit, and it seems to be abundant ...

If you are like me, you have some peonies in your landscape. Peonies are great because the produce these giant flowers pretty early in the season. But after that, they are a nice, green, leafy plant ...

Here we are, on the last Saturday of a hot and muggy July, and the word miasma comes to mind as I look to a bed of peonies. Foliage of several plants is disfigured and a grayish-white powder is easy ...