Pink boll worm (Pectinophora gossypiella , gelechiidae ,lepidioptera)
Damaging stage : larva
Symptoms of damaging:
- excessive shedding of
- Boll fall
- Mature bolls with poor quality
Identification
- Egg : white, flat and
- Larva : white and turns
- Pupa : Most pupation occurs in the top layer of soil beneath cotton
- Adult : dark brown body, numerous black spot on wings, frings are present on both forewings and hindwings. Venetaion are found in hind wings .
Lifecycle
Egg–3-4 days —-> larva –12-15 days–> Pupa 007-8 days–> Adult
Management
- Early maturing variety preferred .
- Distruction of offseason cotton sprouts /alternate
- Acid delinted
- Balanced
- Pheromones traps and light
- Trichogramma @150000 weekly
- Avoid rattoning .
- Seed fumigation .
- Chloropyriphos @1-2 ml/l.