Controlling Powdery Mildew on Plants
Powdery mildew is a vulgar disease on many types of industrial plant . In fact , it is one of the oldest plant diseases on record – Theophrastis wrote of powdery mildew on blush wine in 300 B.C. Although dissimilar species of fungi make the disease on different plant ( Erysipheinfects vegetable crop and flowers;Podosphaeraspecies infects apples and stone fruits;Sphaerothecaspecies infects Berry , roses , some vegetable crops , and stone fruits ; andUncinula necatorinfects grapes ) , the infections are all characterized by a powdery white to gray fungous growth on leaves , stems and heads ....