Symptoms

• It may attack young plants and also at the seed production stage as being commonly observed in northern India in recent years, when high humidity prevails during seed production stage.
• The fungus when attacks the young seedlings, discoloration occurs and in severe cases the whole plant perishes.
• Purplish leaf spots or yellow brown spots on the upper surface of the leaf appear, while fluffy downy fungus growth is found on the lower surface.

Management

• Seed treatment with Metalaxyl (Apron 6g/kg of seed )
• Foliar spraying with Metalaxyl (Ridomil) 0.4%.