| Cutworm: Spodoptera exigua |
Symptom of damage:
- Defoliation in the nursery
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| Infected leaves |
Uneaten midrib |
Scrapping of leaves |
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Identification of the pest:
- Egg: Lays cluster of reddish brown eggs on the lower portion of young plants
- Larva: Brownish green with wavy lines in dorsal surface and lateral yellow stripes
- Pupa: Pupates in the soil in earthen cocoons
- Adult: Brown moth with white hindwings
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Management:
- Remove weeds and stubbles after harvesting
- Avoid green manure and apply FYM to prevent cutworm egg laying
- Spray carbaryl 50 WP @2.5 kg/ha or quinalphos 20 EC@2 lit/ha or phoshalone 35 EC @1.25 lit/ha
- Use Steinernema carpocapsae entomopathogenic nematode or Beauveria bassiana fungi at emergenge of cutworm.
- Before one week of sowing, apply Bacillus thuringenesis + Rice husk in main field to control cutworm
- Release Trichogramma parasitoid weekly once for 3 weeks continuously to control cutworm eggs
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