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利用赤眼蜂（棉铃虫天敌）防治棉铃虫的防治原理是将赤眼蜂释放到棉田，使其羽化后的成虫主动将卵产在棉铃虫卵中，通过吸收棉铃虫卵的营养成份（即寄生），而使其不能卵化达到杀灭棉铃虫的目的O1997年丰南市农业局与吉林省农大生防所联合搞了赤眼蜂防治棉铃虫生防技术示范田66
The use of Trichogramma (Helicoverpa armigera natural enemies) prevention and control of cotton bollworm control principle is Trichogramma released to the cotton field, so that the adults after the emergence of proactive eggs in the cotton bollworm eggs, by absorbing the nutrients of cotton bollworm eggs (ie Parasitic), which made it impossible to reach the goal of killing Helicoverpa armigera. In 1997, a joint venture between the State Council and the State Forestry Workers was held.