Learn how to identify, prevent, and treat powdery mildew with this guide. Discover organic and chemical treatment options, as well as management strategies for long-term control.

If you've started to notice tiny, white, powdery, or splotchy spots on your plants, you might be dealing with a common fungal disease known as powdery mildew. While it typically doesn't cause ...

“Help, my plant is covered in a white, powdery fungus! What do I do?” First, don’t panic. While powdery mildew may not look pretty, it rarely causes significant damage except in cases of severe ...

Q: My overwintering chard has started to show a "white powdery" substance covering both front and backsides on some of the leaves. Photos are attached comparing normal and white powdery leaves on the ...

“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 ...

Every year at this time I look at the flowering dogwoods with pity. In spring, they are so beautiful, their blooms blanketing the landscape with the whiteness of new-fallen snow. Now, they are once ...

Q. My peonies have a white residue on the leaves and seed heads. I sprayed a fungicide on July 26. We sprinkle with city water. What is causing the peony problem, and how should I cure it? Now the ...

The grayish white powdery growth you are seeing on the dahlia leaves is caused by a fungus and can also be a common garden problem on other plants. Many species of fungi can cause powdery mildew on ...