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The maggot burrow into the fruits and suck the sap.
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Infested fruits decay and drop.
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The fly mainly prefers tender fruits for egg laying.
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Ovipositional punctures caused by adults also cause injury to fruits and fruit juices ooze out.
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This also results in distorted and malformed.
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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
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Collect and destroy infested fruits.
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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.
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Cover developing fruits with paper or polythene cover immediately after anthesis pollination.
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Maize plants grown in rows at a distance of 8-10 cm in the field are effective as flies rest on such tall plants.
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Deep ploughing to expose hibernating stages.
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Flubendiamide 8.33 % + Deltamethrin 5.56 % w/w SC @ 100-125 ml/acre.
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