Groundnut cultivation (English) - 2

 v  Disease management: -

1.   Tikka disease –

F This disease is caused by fungus called Cercospora personeta and Cercospora arachidicola.

F Cercospora personeta attacks husbands late and is more harmful.

F Control – Seed treatment with Carbendazim 3 gm/kg or spraying Mancozeb @ 1.5 kg/hac 40 days after sowing.

2.   Coller rot disease-

F By a fungus called Aspergillus niger

F Other names – seedling blight or crown rot

F Control – Treat seeds with Trichoderma 6 kg, spray Carbendazim 0.3% on plants and ground.

3.   Rossette disease –

F This disease is caused by GRAV (Groundnut rosette assistor virus). Aphid is the carrier of this virus.

4.   Bud necrosis –

F Death of the upper bud of the plant.

F This disease is caused by GBNV virus which is spread by thrips.

F Control – Spraying of dimethonate.

v  Insect management –

1.   White grub (Holotrachia consengunia)-

F Use 25 kg/hac of phorate methate 10 G before sowing.

F Seeds are treated with chloropyriphos at 450 ml/100 kg.

2.   Bihar hairy caterpillar –

F There are black spots on its wings.

F It eats away the upper surface of the husks.

F To prevent this, spraying of 0.15% monocrotophosan 35% EC solution.

3.   Termite (Odentotermis obesus)-

F This insect eats the roots of plants from inside the soil.

F To prevent this, before sowing, Carboril 5% dust should be applied in the furrows at the rate of 25 kg/hac.

v  Yield –

F From tufted species – 8-10 quantal/hac.

F From spreading species – 12 quantal/hac

F From irrigated areas -30 quantal/hac

F After harvesting, the crop should be dried for a week. When the moisture remains at 9-10%, then the pods should be separated from the plants.

F Beans should not have more than 5% moisture at the time of storage.