The disease occurs during the flowering stage of the crop.

Leaves are infected most.

Shedding of lower leaves generally occurs in the infected plant.

The lesions are seen on leaflets as water soaked, small, circular and purple in colour.

Infected pods turn blackish in colour.

Infected seeds get shriveled.

The plants should be planted distantly.

Avoid excessive vegetative growth.

Intercrop with linseed.

Avoid excessive irrigation.

Use compact varieties.

Use Mancozeb at the rate of 2.5g/lit or Use Carbendazim at 1g/lit