10.22376/ijpbs.2019.10.1.p1-12 Volume 6 Issue 2 2015 (April - June) This investigation was aimed to study the management of bollworms using different integrated pest management strategies in cotton. Highest infestation in bolls at harvest was recorded in module-5 and lowest was recorded in module-2. Net returns were highest in module-5, which also recorded maximum cost-benefit ratio. Low net returns and cost-benefit ratio were recorded in module-3. Eventhough, seed cotton yield was recorded maximum in module-6 where combinations of different biopesticides and conventional chemical insecticides were used, the net returns and cost-benefit ratios were highest in module-5 where lessThan i greaterThan Setaria lessThan /i greaterThan sp. was intercropped with cotton and cultural practices were practiced to manage the bollworm infestation along with use of bioagents and biopesticides. Thus, it can be concluded that module-5 comprising of mixed cropping with lessThan i greaterThan Setaria lessThan /i greaterThan , 5% neem seed kernel extract spray, mechanical control of large size larvae, two releases of lessThan i greaterThan Trichogramma lessThan /i greaterThan , lessThan i greaterThan Helicoverpa armigera lessThan /i greaterThan nucleopolyhedrosis virus and lessThan i greaterThan Bacillus thuringinesis lessThan /i greaterThan spray at economic threshold level can be adopted as an effective IPM module in cotton. S. NAGENDRA IPM, cotton, Cost-benefit ratio, biopesticides, synthetic pesticides. 989-998