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Life cycle of leaf folder

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Life cycle of leaf folder 

  • Eggs of C. medinalis are flat and oval and are laid on leaf blades.
  • Larvae hatch in 3 to 5 days.
  • The first and second instar larvae are gregarious and generally feed within the slightly folded basal regions of the young leaves in a tiller.
  • Generally only one larva is found per leaf roll and after feeding on one fold for about 2 to 3 days it moves on to another leaf.
  • The larval period lasts 15 to 25 days, during which time; the larvae may invade on more than three leaves.
  • Pupation takes place in the leaf rolls and the pupal period lasts for 6 to 10 days.
  • Adult moths live for 2 to 3 days.
  • Under favorable conditions, leaf folders produce several generations.
File Courtesy: 
INSECT PEST MANAGEMENT IN RICE IN INDIA . PASALU et.al., DIRECTORATE OF RICE RESEARCH RAJENDRANAGAR, HYDERABAD-30, A.P., INDIA
Photo Courtesy: 
FIELD MANAGEMENT OF INSECT PESTS OF RICE - A READY RECKONER. TECHNICAL BULLETIN NO.46, DIRECTORATE OF RICE RESEARCH, RAJENDRANAGAR
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