Study on Applied Techniques of Transgenic Bt Hybrid Cotton with Resistance to Bollworm

The author studied the applied techniques of transgenic Bt hybrid cotton with resistance to bollworm in coastal area of Jiangsu province in the following aspects: occurrence law of target and non-target insect pests, yield loss caused by cotton bollworm and its control index, suitable planted transgenic Bt cotton varieties, effects of different proportions of planting transgenic Bt cotton on occurrence degree of cotton bollworm, population dynamics of natural enemies, principal points of monitoring main insect pests, and integrated measures for the control of cotton bollworm in transgenic Bt cotton field.