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TNAU Agritech Portal :: Crop Protection
Leaf eating caterpillar: Spodoptera litura
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Symptoms of damage:
- Young larva scrap leaves on ventral surface
- Grownups defoliate crops
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Larval feeding |
Scrabbing |
Foliar damage |
Flower damage |
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Identification of pest:
- Egg: Masses appear golden brown
- Larva: Pale greenish with dark markings, gregarious in the early stages
- Adult: Brownish in colour, Forewings are brown colour with wavy white marking, Hind wings are white colour with a brown patch along the margin
Management:
- Grow castor as trap crop. Collect and destroy egg masses and early instar larvae
- Set up pheromone traps @ 12/ha.
- Spray SlNPV 1.5 x 1012 POBs/ha
- Spray Azadirachtin 1.0 % EC (10000 ppm) 2.0 ml/ lit. or apply Bacillus thuringiensis 2g/lit. during evening hours.
- Plough the soil to expose and kill the pupae
- Grow castor along border and irrigation channel as trap crop
- Set up light trap @1/ha
- Pheromone traps (Pherodin SL) @15/ ha to attract male moths
- Collect and destroy egg masses in castor and tomato
- Hand pick grown up larvae and kill them
- Spray Sl NPV @ 1.5 X 1012 POBs / ha+2.5 Kg crude sugar+0.1 % teepol
- Poison bait: Rice bran 5 Kg + Molasses or Brown sugar 500g + Carbaryl 50 WP 500g+ 3lit of water/ha. Mix the ingredients well and are kept around the field in the evening hours
- Spray chlorpyriphos 20 EC 2 lit/ha or dichlorovos 76 WSC 1 lit/ha
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Larva |
Adult |
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Updated on Jun, 2023 |
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