UC Davis researchers have uncovered important genetic clues about the pathogen that causes grape powdery mildew, among the most destructive vineyard pests throughout California and the world.

Q: I have a 5-year-old Thompson grape that was a great producer for the last four years. Last year, the grape leaves had a white "dust" on them, the grapes were small, and some did not ripen at all.

Grape breeders across the country are working to develop varieties that won’t fall victim to powdery mildew, a fungus that threatens grapes just about anywhere they are grown, and now artificial ...

Whether you’re a novice or avid gardener, discovering your greenery is dealing with a disease is never a pleasant surprise. One frequent problem that often pops up during the warmer months: powdery ...

Grape growers and winemakers around the world will be able to easily assess powdery mildew in the field with the help of a mobile application just released globally. Grape growers and winemakers ...

One of the biggest threats to vineyards local grape growers face is powdery mildew, a fungus that can ruin their crop if left unchecked. But spraying can be problematic, so the more than 200 vineyard ...

New field trials show that it kills a powdery mildew that would otherwise damage vine leaves and destroy grapes. Many urban dwellers don’t realize that mildew is more than the unsightly bane of shower ...

It seems to spring up overnight: Powdery mildew. The splotchy white and gray dust covers the leaves and stems of many of the most popular plants. Woody perennials like lilacs, roses, azaleas, ...

Q. It happened again! I wrote last year about a white coating on my grapes which you diagnosed as fungus. Lost all the grapes. This year there are many bunches of grapes, all covered with the same ...

Spring is in the air – and so is powdery mildew. This is the type of weather it loves. Watch for signs of this fungal disease on roses, grapes and ornamental shrubs, particularly on new leaves. A ...

Grape growers and winemakers around the world will be able to easily assess powdery mildew in the field with the help of a mobile application just released globally. PMapp, which supports decisions ...