Grape downy mildew
January 1, 1970
primarily as oospores in fallen leaf litter, though in milder climates it can also persist as mycelium within infected buds and canes. In spring, oospore g [...] mildew, caused by Plasmopara viticola , is one of the most important diseases in wine and table grape production worldwide. The disease spreads rapidly under [...] wet conditions, infecting leaves, shoots, and young berries, often resulting in severe yield and quality losses. Infections during flowering and early berry