Add Yahoo as a preferred source to see more of our stories on Google. Whether you’re a novice or avid gardener, discovering your greenery is dealing with a disease is never a pleasant surprise. One ...

If a white, dusty coating suddenly appears on your houseplant’s leaves, don’t panic—but don’t ignore it. “Powdery mildew is a type of fungal infection that affects plants,” says Bex Claire Hamell, ...

An innocent-looking white dust can signal serious trouble. That soft, powdery coating creeping across leaves doesn’t just sit ...

Hydrangeas are a favorite flowering shrub among gardeners. With their dark green leaves and big, showy blossoms in shades ranging from blue to deep pink, they can easily steal the spotlight in any ...

“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 ...

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 ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A stunning mixture of pink and purple hydrangeas - Fanpro/Getty Images Hydrangeas are a favorite flowering shrub among gardeners.