Crop plants of all the age group are affected.

With the onset of the disease white powdery mass appear on the leaves.

Small patches of white powder coating initially develop on both surfaces of older leaves.

Affected leaves turn purple and then die.

When infection is severe, stems, young leaves, and pods are also covered with the powdery coating

Field and crop sanitation.

Dithane M-45 or Carbendazim at 2.5 g/lit should be sprayed.