Introduction to Major Field Crops

Plant Protection

Insect Pests
Leaf Miner/Aphids/Thrips: For controlling these insects spray Dimethoate at 200-250 ml/ha.
White Grub: Incidence of white grub population in the field may be checked by mixing Thimet (10%) granules in the soil before sowing at the rate of 15 kg/ha.
Red Hairy Caterpillar: Spraying of Endosulphan at 350 ml/ha reduces the infestation of red hairy caterpillar.

Fig: Aphids. Fig: White grub. Fig: Red hairy caterpillar.

Diseases

Leaf Spot: Small dark brown circular spots appear on the leaves and if the attack is severe, defoliation occurs and the stem remains which is commonly called as tikka disease. For controlling this disease grow tolerant varieties like TMV-6 AND TMV-10, treat the seeds with Thiram @ 3 g/kg of seeds, uproot and burn the debris of affected plants, spray Bavistin at 0.05 per cent + Dithane M-45 0.2 per cent at 2-3 weeks interval.

Collar Rot/Stem Rot: Seed treatment with Thiram5 g or Dithane M-45 3g or Bavistin2 g/kg seed, uproot and burn the debris of affected plants.

Fig: Leaf spot.