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.

I went away for the weekend and came home to find some my plants covered with what looks like a white powder. What should I do? — L.H. Powdery mildew becomes apparent when you notice a whitish ...

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 ...

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 ...

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 ...

Cornstarch isn’t just for baking cakes, cupcakes, and muffins. It actually works wonders in the garden, treating powdery mildew, improving water retention in planters, helping prevent blisters on your ...

“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 ...

As with most things in life, gardening is a mixed bag of good and bad. The key to survival is to minimize the bad and accentuate the good. Huh? Yeah, I hate it too when I start to get philosophical.

David Markel, research and development manager at Willamette Valley Vineyards, prepares to operate Thorvald at the winery south of Salem. The robot shines an eerie green in the dark of night as it ...