Grapes

This week we explore powdery mildew on grapes: "Every year we have a good crop of grapes, but they are covered by mold. What should we do? We sprayed our grapes with milk & water (equal parts) to no avail. Any suggestion? Thank you. Ana & Joe Liper" You're not alone, Ana & Joe, molds such as powdery mildew are very common on grapes and other vining crops like melons and cucumbers. Once it takes hold it is very hard…