“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 ...

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 ...

Question: Could you please tell me what causes the white powdery mold on my squash plants every year? The plants do really well for a while and then start getting the white mold all over the leaves. I ...

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, ...

Question: The outside walls and trim of our house are covered with a black powdery mold that is really starting to look terrible! The mold is especially ...