About Lesson
Field cricket(Brachytrupes portentous, Gryllidae, Orthoptera)
Damaging stage:- nymph and adult
Damaging stage:
- both cut the young seedling
- cut spike and ear of the plant which they carry inside the
- irregular to longitudinal exit
- cutting of central portions of the leaf blades leaving only the
- deadhead
Identification
- Egg: laying on the soil
- Nymph: similar but are smaller and lack wings.
- Adult Field crickets are black or dark brown insects about 1 inch long as adults. They have large hind legs (for jumping) and most have well-developed wings.
Management
- Deep plowing during winter
- Flooding the field
- Blue-type wasp is a predator
- Fenitrothion 50%Ec @1ml/l.