Potato Tobacco Caterpillar

Potato Tobacco Caterpillar: Spodoptera litura

Symptoms of damage:

  • The young larvae first feed gregariously and scrape the leaves
  • Older larvae spread out and may completely devour the leaves resulting in poor growth of plants

Identification of pest

  • Egg: Masses appear golden brown
  • Larva: Pale greenish with dark markings
  • Adult: Forewings are brown in colour with wavy white marking, hind wings are white in colour with a brown patch along the margin


  • Plough the soil to expose and kill the pupae
  • Grow castor along border and irrigation channel as trap crop
  • Flood the field to drive out the hibernating larvae
  • 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 @ 1.5X1012 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 – Kept around the field in the evening hours
  • Spray chlorpyriphos 20 EC 2 lit/ha or dichlorovos 76 WSC 1 lit/ha.



  • TamilNadu Agritech Portal


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