Our recent spate of hot and cold weather has brought out a late outbreak of powdery mildew. Leaves on roses, lupines, phlox, squash, melons and even maple trees have all picked up the telltale whitish ...

Some of my perennials and a young maple tree have what appears to be a white residue on the leaves. Some of the plants are turning brown, as I would expect them to do in early November. Most of the ...

Due to California’s dry summers, powdery mildews are more prevalent in Marin County than many other leaf-infecting diseases. These fungi affect virtually all kinds of plants: cereals, grasses, ...

Your description sounds a lot like powdery mildew, which is an easy disease to recognize, and it is common in the landscape at this time of year. It can be a problem that shows up on annuals, ...

MILWAUKEE -- It's mid-July and we can start to plant almost a whole new garden. See what you can plant now and over the next few weeks to harvest yet this season. There are potatoes growing in several ...

Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy. May ...

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 ...

Q:I planted some begonias in clay pots and some petunias in a planter. A few weeks ago, both got a powdery white substance on their leaves. I bought new flowers and new potting soil but am afraid to ...

Last year, I had a problem with powdery mildew on my phlox plants. This year, it attacked my phlox along with my peonies, coreopsis and even my marigolds. I sprayed with a commercial product when I ...

A stunning mixture of pink and purple hydrangeas - Fanpro/Getty Images Hydrangeas are a favorite flowering shrub among gardeners. With their dark green leaves and big, showy blossoms in shades ranging ...

Leaf rust, caused by Puccinia recondita f. sp. tritici, and powdery mildew, caused by Blumeria graminis f. sp. tritici, are the most prevalent of all of the wheat diseases in many regions of the world ...

Powdery Mildew (PM) is a fungal leaf disease caused by Blumeria graminis , which can reduce grain yield and quality in cereal crops. B. graminis species can be subdivided into Formae specialis groups ...