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Learn Economic Entomology with Rahul

Brinjal fruit and shoot borer (Leucinoides orbonalis, Pyralidae , Lepidioptera)

  • Most destructive insect of eggplant
  • Starts of transplanting to harvesting.

Leucinodes Orbonails - Brinjal Fruit Shoot Borer Pheromone lure - SK  Agrotech

Damaging stage: larva

Damaging symptoms : wilting and dropping of leaves and apical shoot, caterpillar also bore the fruit.

 

Identification:

  • Egg: single or cluster on flower, bud, and other parts.
  • Larva: creamy white (young ), light pinkish in color at later stage.
  • Pupa: silken cocoon on plant debris or stem or fruit.
  • Adult: white wings having triangular brown red marking on forewings and black patches on cross vein on hindwings

 

Life cycle:

Egg—3-5 days–> Larva –10-15 days–> Pupa –6-8 days–> Adult

 

Management:

  • Pheromone trap: leucin trap
  • Delta trap and otta trap
  • Bacillus thuringiensis kurstaki.
  • Larval parasitoid: bracon wasp
  • Egg parasitoid: trichogramma chilonis
  • Maize cropped as barrier.
  • Tolerant varieties: pusa long, pusa kranti, Nurki