Identification of the pest
- Larvae damage grains, adults being harmless.
- Grains are hollowed out.
- It attacks both in fields and stores.
- In stored bulk grain, infestation remains confined to upper 30 cms depth only.
- Caterpillar enters the grain through crack or abrasion on grain.
- It feeds inside and remains in a single grain only.
- Egg - White eggs on the surface of damp grains in stores or fields, which soon become red.
- Larva - White with yellow head.
- Pupa - Pupates in cocoon inside the grain.
- Adult - Dirty yellowish brown with narrow pointed wings completely folded over back in a sloping manner.
