Root Knot Nematode ()

Symptoms

• Most serious problem affecting coleus.
• Infected plants develop galls, become stunted and show yellowing and drooping.
• Root growth is suppressed. Galls are very big and pronounced.

Management

• Soil solarization
• Adopt crop rotation with sweet potato
• Deep plough the field in summer
• Destroy root residues and other plant parts by burning
• Plant marigold along the borders of the field
• Apply neem cake 200 gm/hectare into soil
• Paecilomyces lilacinus (20g/l) in the soil