Powdery Mildew

General Information: Cool and dry weather favors powdery mildew development. Appears late in the season when the crop is nearing maturity, except in highly susceptible varieties. Powdery coating on leaflets    Symptoms : Small patches of white powdery coating initially develop on both surfaces of older leaves. These patches grow and may cover a large area. Affected leaves turn purple and then die. When infection is severe, stems, young leaves, and pods are also covered with the powdery coating. Control : A minor disease and does not require any specific control measure.