Cabbage butterfly: Pieris brassicae, P.rapae

Symptoms of damage:

• Defoliation
• Bores into the heads of cabbage

Identification of pest:

• Larva: Velvetty bluish green in colour with black dots, Yellow dorsal and lateral stripes covered with white hairs.
• Pupa: chrysalis which takes place in leaves and stem
• Adult: White butterfly

Management:

• Collect and destroy caterpillars in the early stage of attack
• Conserve parasitoids like Cotesia glomeratus
• Spray insecticides like quinalphos 25 EC @1000 ml