Agriculture
Crop Production :: Oil Seeds :: Groundnut

 

Groundnut leaf miner:   Aproaerema modicella

Symptoms of damage

  1. Young larvae mine into the leaves and feed the leaflets.
  2. Short brownish blotches on the leaflets.
  3. Grown up larvae web the leaflets together, feed on tissues and form brown blister-like blotches.
  4. In severe infestation, damaged leaflets roll, shrivel, dry up and gives a burnt appearance

Identification of the insect pest

  1. Eggs : Shiny white eggs laid singly on underside of the leaflets.
  2. Larva: Green coloured with pale brown head and prothroax.
  3. Pupa: Reddish brown, pupate in white silken cocoons within webbed leaflets.
  4. Adult: Tiny brown moth about 6 mm in length with a white spot on the costal margin of forewing
  5. Hindwings with fringed hairs

Management
ETL: 1 larva /meter row 

  • Sow groundnut early and synchronously in rainy and rabi season.
  • Intercrop groundnut with pearl millet @ 4:1 ratio.
  • Set up light trap @ 1/ha between 8 and 11 PM at ground level.
  • Mulch the soil with straw within 10 days after germination wherever possible.
  • Avoid water stress in irrigated crop to avoid the pest infestation.
  • Maintain the fields and bunds free from weeds.
  • Spray Quinalphos 25 EC @ 400 ml/ac
Leaf damage
Damaged plant
Larva

Adult

 

 

 

 

 

 

 

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