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

“Powdery mildew is usually seen on the broadest sections of the plants, starting out as small, white, circular spots or discoloration on the plant’s leaves,” explains Pangborn. As it spreads ...

Q: My tomato plants have started to get white spots on the leaves. Before it gets any worse and spreads to other plants, I would like to know what it is and how to get rid of it. —Julia Stalek ...

Powdery mildew, one of the most easily identifiable fungi, first appears as white spots on plants and then spreads. In some plants, the leaves eventually turn yellow or brown and fall off, leaves ...

The tops of the leaves are covered with tiny white spots and the undersides of the leaves are covered with reddish brown spots. The new growth is green, but shortly becomes damaged the same way ...

Spots and patches of a white or gray talcum powder-like substance on your plant means powdery mildew infected your plant. This is one of the most widespread fungal diseases and attacks a wide ...

Q. Most of the leaves on our desert rose plants have white spots. Could this be a fungus, and what is a control?A. The white spots look like they could be the growth from a fungus – but each is ...

A: The white spots on top of the leaves are probably a buildup of mineral salts. You can remove them with a bit of diluted vinegar on a soft cloth. To prevent these, don't use tap water, which may ...

Upper leaf surfaces turn powdery white, followed by yellowing and foliage loss. It is difficult to treat; keep plants well-watered and choose resistant species such as Aster x frikartii. Begonia ...

Right now the spots are showing up on several leaves on one of my plants. - Gary Bramblett Answer: This is likely Septoria leaf spot, a common fungal disease of tomatoes.