Journal of Biological Control

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Biocontrol Based Management of Cotton Bollworms in the Punjab


Affiliations
1 Department of Entomology, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
 

Two biocontrol based IPM modules, along with Punjab Agricultural University (PAU) spray schedules were evaluated for the management of cotton bollworms. IPM module II (3 sprays each for sucking pests and cotton bollworm + 8 releases of Trichogramma chilonis @ 1,50,000/ha/week + one release of Chrysoperla carnea @ 10,000/ha) was on par with PAU spray schedule in reducing the bollworm damage and increasing the yield. When T. chilonis (Bathinda strain) was integrated with insecticides it reduced the damage of bollworm by 70.3 percent and gave higher yield by 44.5 percent over insecticides alone.

Keywords

Chrysoperla carnea, Cotton Bollworms, Insecticides, IPM Module, Trichogramma chilonis.
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  • Biocontrol Based Management of Cotton Bollworms in the Punjab

Abstract Views: 244  |  PDF Views: 110

Authors

K. S. Brar
Department of Entomology, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
B. S. Sekhon
Department of Entomology, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
J. Singh
Department of Entomology, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
M. Shenhmar
Department of Entomology, Punjab Agricultural University, Ludhiana 141 004, Punjab, India
Joginder Singh
Department of Entomology, Punjab Agricultural University, Ludhiana 141 004, Punjab, India

Abstract


Two biocontrol based IPM modules, along with Punjab Agricultural University (PAU) spray schedules were evaluated for the management of cotton bollworms. IPM module II (3 sprays each for sucking pests and cotton bollworm + 8 releases of Trichogramma chilonis @ 1,50,000/ha/week + one release of Chrysoperla carnea @ 10,000/ha) was on par with PAU spray schedule in reducing the bollworm damage and increasing the yield. When T. chilonis (Bathinda strain) was integrated with insecticides it reduced the damage of bollworm by 70.3 percent and gave higher yield by 44.5 percent over insecticides alone.

Keywords


Chrysoperla carnea, Cotton Bollworms, Insecticides, IPM Module, Trichogramma chilonis.