Root-knot Nematode problems in Groundnut

Root-knot Nematode, Meloidogyne arenaria

• Yellowing and chlorosis of leaves.
• Stunted growth of plants.
• Wilting of the plants during mid-day.
• Plant death occurs when nematodes interact with fungal pathogens.

Below ground

• Appearance of bead-like galls on the roots and pegs.
• Single or multiple wart-like growths on pods.
• Malformed pods under severe infestation.

Management:

• Crop rotation with non-host crops such as maize, sorghum and cotton.
• Application of biocontrol agent, Purpureocillium lilacinum (Paecilomyces lilacinus) at the rate of 5 kg / ha along with 250 kg of well decomposed FYM

Infested Field	Bead-like galls on the root	Infested Pod