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Pest Management: Symptoms

Sunflower  -  Tobacco caterpillar : Spodoptera litura

Symptoms of Damage: 
 The larvae feed on the tender leaves, shoots, bracts and petals
 Later, the larvae spread in the field causing defoliation
 The larvae also feeds on the developing seeds in capitulum
Identification of Pest: 
 Egg: Egg masses appear golden brown
 Larva: Pale greenish with dark markings, gregarious in the early stages
 Adult: Forewings are brown colour with wavy white marking. Hind wings are white in colour with a brown patch along the margin
Management: 
 Hand pick the Helicoverpa larvae and destroy
 Spray any one of the following insecticides
 Dichlorvos 76 EC 500 ml/ha
 Phosalone 35 EC 1000 ml/ha
 Phosalone 4 D 25 kg/ha
 Insecticidal application at the time of bee visit is toxic to honey bees. So, apply the insecticides after 4 pm when the bee activity is minimum.
 Do not spray insecticides on the same day when NAA is sprayed
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