Pink boll worm

Ehtisham Ali HUssain
University College Of Agriculture,
University Of Sargodha, Sargodha
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1. Insect Pests of Agricultural Crops Insect Pests of Cotton Ehtisham Hussain BAGF15E258 University College Of Agriculture, University Of Sargodha, Sargodha In the name of Allah, the most Merciful and the most Beneficent

2. Pink Bollworm Technical Name: Pectinophora gossypiella (Gelechiidae; Lepidoptera) Major pest of Cotton

3. Identification: Eggs- oval and white Larva- pink colour Adult- dark brown with blackish spots on forewings

4. Egg Larva Adult Pectinophora gossypiella Pupae

5. Life Cycle of Pink Bollworm: Larva Adult Egg Pupae 10-12 days pupal period grows in 12-14 days egg hatches in one week Lays 150-200 eggs on leaves There are 4-6 generations of this pest in a year

6. Damage: Larvae bore the squares, flowers and bolls and eats the internal content If larvae enter in the squares, such squares do not open properly and called “Rosette Flowers” Lot of shedding takes place.

7. Control: Pest can be controlled by following method Clean cultivation and destruction of alternate host plants After picking, grazing of sheep on unwanted bolls in the field Natural enemies of the pest (predators and parastoids) should be promoted in the field Application of triazophos EC 1000 ml/acre