Root-knot Nematode (Meloidogyne sp)

Symptoms

• Stunted plant growth.
• Leaves turn yellow.
• Nodules form on the roots.

Management

• Choose planting materials that are not attacked by nematodes.
• Soak the corms in 57.8°C water for half an hour and plant.
• To reduce the severity of attacks, marigold can be intercropped, or crop rotation can be practiced.
• The application of neem cake to the soil helps check pest infestation.