AgroStar Krishi Gyaan
05 Mar 20, 10:00 AM
Guru GyaanAgroStar Agronomy Centre of Excellence
Nature of Damage & Control of Leaf Eating Caterpillar in Summer Groundnut
Summer groundnut is cultivated in most states.
The incidence is more common at early stage of the crop.
Under higher humidity, the infestation is much more of leaf eating caterpillar.
Early stage of caterpillar scrap the chlorophyll content of the leaves and feed on young leaves, while in later stage, defoliate the leaves leaving behind the veins of leaves.
At noon, caterpillars hide in the crack & crevices of the soil near the stem of the plants.
If population is observed during the reproductive crop stage, they can also damage the developing pods in soil.
Install pheromone traps at co-operative bases.
On initiation, spray neem based formulation @ 20 ml (1% EC) to 40 ml (0.15% EC) or Beauveria bassiana, fungus base powder @ 40 g or Bacillus thuringiensis, a bacterial base powder @ 10 g or SLNPV 250 LE @ 10 ml per 10 lit of water.
Two sprays of pongamia (karanj oil) oil or neem @ 30 ml per 10 lit of water at 15 days interval starting from pest infestation. To prepare ponneem, mix 450 ml of neem oil + 450 ml of pongamia oil (karanj oil) + 100 ml of soap solution (wetting agent) (recommendation of Junagadh Agril. Uni.).
On higher incidence, spray thiamethoxam 12.6% + lambda cyhelothrin 9.5% ZC @ 4 ml or methomyl 40 SP @ 12 g per 10 lit of water.