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.

While Botrytis is the most destructive plant pathogen in grapes, powdery mildew is also a persistent U.S. vineyard threat. Mevalone is a formidable tool to assist growers in their fight against both ...

DURHAM, N.C., April 25, 2017 /PRNewswire/ -- This season, grape growers have an entirely new fungicide choice for the control of Powdery Mildew. PROLIVO™ 300SC Fungicide from Summit Agro USA is now ...

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 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 ...

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 ...

As we move into Labor Day, we will see a major cooldown in temperatures, and that means it is the beginning of powdery mildew season. The evenings are cooling and because we are still watering gardens ...

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 ...