How to manage fruit fly outbreak in bitter gourd

How to manage fruit fly outbreak in bitter gourd
  • The maggot burrow into the fruits and suck the sap.

  • Infested fruits decay and drop.

  • The fly mainly prefers tender fruits for egg laying.

  • Ovipositional punctures caused by adults also cause injury to fruits and fruit juices ooze out.

  • This also results in distorted and malformed.

  • The maggots feed on the pulp of fruits as well as on the immature seeds and cause premature dropping of fruits.

    Management of fruit fly in bitter gourd

  • Collect and destroy infested fruits.

  • To prevent egg laying, fly traps(pheromone traps) can be set up in the field with 1% Methyl Eugenol or Citronella oil or Vinegar or Dextrose or Acetic acid or Lactic acid.

  • Cover developing fruits with paper or polythene cover immediately after anthesis pollination.

  • Maize plants grown in rows at a distance of 8-10 cm in the field are effective as flies rest on such tall plants.

  • Deep ploughing to expose hibernating stages.

  • Flubendiamide 8.33 % + Deltamethrin 5.56 % w/w SC @ 100-125 ml/acre.

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