Formation of galls on host root system is the primary symptom
Roots branch profusely starting from the gall tissue causing a ‘beard root’ symptom
Infected roots become knobby and knotty
In severely infected plants the root system is reduced and the rootlets are almost completely absent. The roots are seriously hampered in their function of uptake and transport of water and nutrients
Plants wilt during the hot part of day, especially under dry conditions and are often stunted
Nematode infection predisposes plants to fungal and bacterial root pathogens
Management
Intercropping of marigold, sun hemp or daincha reduces nematode population
Deep ploughing of fields during summer to control nematodes population and weeds.
Use resistant/tolerant varieties.
Sowing should be completed within recommended periods.
Nursery should be raised in nematode free sites or fumigated or solarized beds
Application of decomposed poultry manure @ 200 g / sq. m. Apply neem cake @ 100 Kg/acre at the time of transplanting for reducing nematodes and borer damage.
Use mahua [Madhuca longifolia], castor, neem and karanj [Pongamia pinnata] cakes, biogas sludge applied at 1.0 t/acre during pit preparation.
Apply 2 tons of FYM enriched with Pochonia chlamydosporia and Paecilomyces lilacinus/acre before sowing, along with 100-200 Kg of neem or pongamia cake.
Apply neem based products (Neemagon, Bioneem, Neemraj etc.) for controlling this pest.
