Powdery mildew is common plant disease that can quickly make a mess of your roses. It shows up as a dusty white coating on ...

Help, my plant is covered in a white, powdery fungus! What do I do?” First, don’t panic. While powdery mildew may not look ...

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 ...

Powdery mildew can spread from plant to plant, but it may not, depending on both the plant and the type of powdery mildew. Although there are a variety of powdery mildews, they all follow the same ...

A white, powdery covering to leaves, stems, flowers or fruit gives the disease its common name. Sometimes, though, the first symptoms you notice may be yellow or purple discolouration, falling leaves ...

Powdery mildew thrives in the rainy humid conditions which we have been experiencing this summer. The disease is often worse on shaded plants and/or plants with little air circulation. $2 for 6 ...

The black spots made by downy mildew spores are not as dark and can have an angular appearance. Under moist conditions, you might see a gray, downy-looking growth on the undersides of the leaves.