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Pest Management: Symptoms

Chilli  -  Tobacco cutworm: Spodoptera litura

Pest management
Symptoms of Damage: 
 Newly hatched larvae scrap the green matter in the leaf
 Affected leaf looks like a papery white structure
 Later instar larvae feed by making small holes
 In severe infestations they feed voraciously on the entire lamina and petiole
Identification of Pest: 
 Larva: Are seen in groups, young caterpillars are light green with black head or black spots
 Adult: Are brown in colour. Forewings are brown colour with wavy white markings, hind wings are white colour with a brown patch along the margin.
 Egg: Eggs are golden yellow, laid in masses and covered by silky hairs.
Management: 
 Plough the soil to expose and kill pupae
 Castor as a trap crop
 Set up pheromone trap @15/ha
 Collect and destroy the egg masses, gregarious larvae and grown up caterpillars
 Spray SINPV @ 1.5x1012 POB/ha in evening hour
 Spray any one of the following insecticides
 Emamectin benzoate 5 % SG@ 4 g/10 lit.
 Flubendiamide 20 WDG @ 6.0 g /10 lit.
 Indoxacarb 14.5 % SC @ 6.5 ml/10 lit.
 Novaluron 10 % EC @ 7.5 ml/10 lit.
 Spinosad 45 % SC@ 3.2 ml/10 lit.
 Thiodicarb 75 % WP @ 2.0 g/lit.
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