ZURICH (Reuters) - Germany's Bayer has advised wine grape growers not to use its Moon Privilege fungicide until its CropScience arm has investigated whether there is a connection between the product's ...

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 ...

Apparently, some Swiss wine grape growers have complained to the company that they had deformed leaves on the vines as well as lower crop yields in 2014. Referring to the complaints as “atypical ...

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 ...

Q: The berries on my Red Flame grapevine are shriveling and turning gray, but the vine looks healthy. Do you know what the problem is? A: Bunch diseases attack only grape bunches. At the beginning of ...

Federal environmental regulators are pressing ahead with plans to cancel a fungicide used in Northwest orchards despite the USDA’s concerns about unintended consequences. The USDA and several farm ...

Question: I have some Merlot and Cabernet Sauvignon grapes I’m growing as winegrapes in my garden. I have 24 vines and 21 of them have this whitish look and the berries are shriveling up before ...