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Bhendi fruit borer – Kisan Suvidha
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Bhendi fruit borer

Bhendi fruit borer

Bhendi fruit borer: Helicoverpa armigera

Symptoms of damage:

  • Feed on the flowers
  • Circular boreholes on fruits
  • Larva thrust only part of their body inside the fruit feed

Identification of pest:

  • Eggs: Are spherical in shape and creamy white in colour, laid singly
  • Larva: Shows colour variation from greenish to brown
  • Pupa: Brown in colour, occurs in soil, leaf, and pod
  • Adult: Female brownish yellow stout moth, Male is pale greenish in colour with V shaped markings

Management:

  • Collect and destroy the infected fruits and grown up larvae
  • Grow simultaneously 40 days old American tall marigold and 25 days old tomato seedling at 1:10 rows to attract Helicoverpa adults for egg laying.
  • Setup pheromone trap with Helilure at 15/ha
  • Six releases of T. chilonis @ 50,000/ha per week coinciding with flowering time
  • Release Chrysoperla carnea at weekly interval at 50,000 eggs or grubs/ha from 30 DAS
  • Spray HaNPV at 1.5×1012 POB/ha along with cottonseed oil 300 g/ha to kill larvae.
  • Spray carbaryl 50 WP 2 g/lit or B. thuringiensis 2 g/lit
  • Do not spray insecticides after maturity of fruits.

 

Source-

  • TamilNadu Agritech Portal

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