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Okra Shoot borer – Kisan Suvidha
6428
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Okra Shoot borer

Okra Shoot borer

Okra Shoot borer: Earias vitella, E. insulana

Symptoms of damage:

  • Terminal shoots wither and droop
  • Shedding of buds and flowers
  • Bore hole in fruits and fee
  • Deformed fruits

Identification of pest:

E. Vitella:

  • Egg: Sculptured egg and sky blue in colour
  • Larva: Brownish with white streaks dorsally and pale yellow ventrally
  • Adult: Forewing is pale with a wedge shaped green band in the middle

E. insulana:

  • Larva: Brown with dorsum showing a white median longitudinal streak
  • Pupa: Brown and boat shaped
  • Adult: Forewing is uniformly silvery green

Management:

  • Set up pheromone trap @ 12/ha.
  • Collection and destruction of affected fruits.
  • Release of egg parasite Trichogramma chilonis @ 1.0 lakh/ha.
  • The release of 1st instar larvae of green lacewing predator Chrysoperla carnea @ 10,000/ha.
  • Dust carbaryl 10 % DP @ 25 kg /ha or spray Bacillus thuringiensis @ 2 g/lit or spray any one of the following insecticide
Insecticide

ml or g/lit

Azadirachtin 0.03% WSP (300 ppm) 5.0  g/lit
Azadirachtin 5% Neem Extract Concentrate 5.0  ml/10 lit
Emamectin benzoate 5 % SG 3.0 g/10 lit
Phosalone 35 % EC 1.5 ml /lit
Pyridalyl 10 % EC 1.0  ml/lit
Quinalphos 25 % EC 8.0  ml/10 lit

 

Source-

  • TamilNadu Agritech Portal.

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