Q: I am a big fan of your column, but I haven’t seen any answers about what’s happening to my grapes. Please advise. I have four grape plants and maybe 10 percent to 15 percent have this white stuff ...

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 ...

Researchers at Cornell have discovered a new grape downy mildew resistance gene – giving the wine and grape industry a powerful new tool to combat this devastating disease. “Of the downy mildew ...

Powdery mildew is a fungal disease that affects a wide range of plants from woody and herbaceous ornamentals, to vegetables, grains, grasses, weeds and fruit crops. It is one of the easier diseases to ...