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TNAU Agritech Portal :: Crop Protection

Onion Fly: Delia antiqua

Symptoms of damage:

  • Onion leaves get rotten, shredded and rolled up
  • Growth of onion tubers gets hampered, tissues get decayed and becoming unfit for marketing

 Identification of Pest:

  • Egg: long whitish colour eggs are laid on the undersurface of onion near soil
  • Larva: Whitish and adopous
  • Pupa: Pupation takes place in soil
  • Adult: Grey coloured fly

 Management:

  • Adopt proper crop rotation
  • Spray malathion 1 lit/ha
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