Symptoms of damage
- Beetles occur solitarily or in swarms and devour all the floral parts.
- Adult beetles feed on floral parts including petals, anthers, stigma and ovary and reduces the numbers of pods that are set.
- Inflorescence totally becomes barren without flowers and may dry up
Identification of the pest
- Cylindrical and yellowish 60 – 80 eggs laid on the ground deep in soil.
- Egg period lasts 30-40 days.
- First stage larva is predatory called, ‘triungulin’ (legs with three claws) and actively searches for the host.
- They feed on grasshopper eggs laid in soil.
- They moult five times to become eruciform or caraboid.
- Pupates in the soil.
- Medium to big sized, 12.5-25.0 mm long.
- Conspicuous in appearance and are moderately robustly built with red, black, orange or white bands on wings.
Integrated Management
- Manual picking of beetles by wearing hand gloves or any protective cover when they gather in swarm on plants may be quite successful.
- Timely application of insecticides with fumigant action in the early morning hours will reduce the infestation.
| Symptoms of damage Beetles occur solitarily or in swarms and devour all the floral parts. Adult beetles feed on floral parts including petals, anthers, stigma and ovary and reduces the numbers of pods that are set. Inflorescence totally becomes barren without flowers and may dry up Identification of the pest Eggs Cylindrical and yellowish 60 – 80 eggs laid on the ground deep in soil. Egg period lasts 30-40 days. Larva First stage larva is predatory called, ‘triungulin’ (legs with three claws) and actively searches for the host. They feed on grasshopper eggs laid in soil. They moult five times to become eruciform or caraboid. Pupa Pupates in the soil. Adult: Medium to big sized, 12.5-25.0 mm long. Conspicuous in appearance and are moderately robustly built with red, black, orange or white bands on wings. Integrated Management Manual picking of beetles by wearing hand gloves or any protective cover when they gather in swarm on plants may be quite successful. Timely application of insecticides with fumigant action in the early morning hours will reduce the infestation. |