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 nannyberry ...

SEATTLE — Seattle gardening expert Ciscoe Morris has gathered some common kitchen ingredients to solve a common gardening problem, not start a kitchen show. "This rose is called Oso Easy,” Ciscoe said ...

When tending to your garden, you'll want to make sure that your plants are in good, healthy standing. One thing to monitor your plants for is powdery mildew, a fungal disease that can easily infect ...

“My peonies are covered in what looks like a white powder. What is that, and will it hurt my plant?” — P.F. Peonies are susceptible to powdery mildew, and what you are describing sounds like powdery ...

“My red rhododendron looks as if it has a layer of ash or white powder on it (above). What should I do?” asks Birds & Blooms reader Steven Graves of Aptos, California. Horticultural expert Melinda ...

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 ...

Powdery mildew is a fungal disease affecting many plants, causing a white or gray coating on leaves and slowing growth. The fungus thrives in warm, dry weather with high humidity, especially in ...

Here we are, on the last Saturday of a hot and muggy July, and the word miasma comes to mind as I look to a bed of peonies. Foliage of several plants is disfigured and a grayish-white powder is easy ...

Q: Last year my grapes had such bad powdery mildew that even the grapes dried up and looked moldy and shriveled. I was told by the master gardeners at the farmer’s market that I needed to do something ...

Allan Armitage, professor of Horticulture, University of Georgia, states, "Monarda is a plant that most gardeners can't do without, but others can't do with it for its powdery mildew." Monarda goes by ...