Cabbage head borer: Hellula undalis
Symptoms of damage:
- Caterpillars initially mine the leaves and make it white papery
- Later they feed on leaves and bore into stems
- Entrance hole is covered with silk and excreta
Identification of the pest:
- Larva: Pale whitish brown with 4 or 5 pinkish-brown longitudinal stripes
- Adult: Moths are pale greyish-brown, suffused with reddish colour. Forewings have grey wavy lines, an apical spot and pale edged dark lunule
Management:
- Collection and careful destruction of the larvae at gregarious stage with leaves twice a week.
- For control of grown up larvae apply 5% malathion dust @ 37.5 kg/ha or
carbaryl 50 WP@ 375 g in 150 litres of water
Source-
- TamiNadu Agritech Portal
