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１９９４～１９９８年，在室内、罩笼、田间小区和大田试验示范，从个体生态学、种群生态学、群落生态学和综合防治的角度，较全面、系统地研究、评价了转Ｂｔ基因抗虫棉在害虫综合治理中的作用。研究表明，转Ｂｔ基因棉对棉铃虫（Ｈｅｌｉｃｏｖｅｒｐａａｒｍｉｇｅｒａ）具有良好的抗性，但表现出明显的时空动态；对棉铃虫的影响涉及存活、发育、生殖、行为习性等方面。转Ｂｔ基因棉田棉铃虫不再是主要害虫，但棉叶螨（Ｔｅｔｒａｎｙｃｈｕｓｃｉｎｎａｂａｒｉｎｕｓ）、棉蚜（Ａｐｈｉｓｇｏｓｙｐｉ）、棉蓟马（Ｔｈｒｉｐｓｔａｂａｃｉ）、白粉虱（Ｔｒｉａｌｅｕｒｏｄｅｓｖａｐｏｒａｒｉｏｒｕｍ）等刺吸性害虫的发生为害加重；捕食性天敌优势种变化不大，但棉铃虫幼虫优势寄生性天敌发生数量明显减少。转Ｂｔ基因春棉麦套昆虫群落的多样性指数（２．８０２８）和均匀度指数（０．５８０５）＞春棉平作（分别为２．６１３３和０．５３２１）＞夏棉麦套（分别为１．８１８１和０．４０８２），但优势集中性指数正好相反（分别为０．１０８５、０．１２９１和０．３３６６）；说明春棉麦套昆虫群落的稳定性较好，对外部环境干扰和群落内部种群波动的缓冲能力较强。转Ｂｔ基因棉二代棉铃虫无?
From 1994 to 1998, from the perspectives of individual ecology, population ecology, community ecology and comprehensive prevention and control, experiments and experiments were carried out in indoor, cage, field and field trials to comprehensively and systematically study and evaluate the effects of transgenic Bt The Role of Cotton in Pest Management. The results showed that transgenic Bt cotton had good resistance to Helicoverpa armigera, but showed obvious spatial and temporal dynamics. The effects on cotton bollworm were related to survival, development, reproduction and behavior. The bollworm was no longer a major pest in transgenic Bt cotton field, but the occurrence of sucking pests such as Tetranychuscinnabarinus, Aphis gosypi, Thripstabaci and Trialeurodesvaporariorum were worse; the predation The dominant species of natural enemies changed little, but the number of dominant parasitoids of H. armigera larvae decreased significantly. The diversity index (2.8028) and evenness index (0.5805)> spring cotton flat (2.6133 and 0.5321 respectively)> summer cotton bran (respectively 1.8181 and 0.4082), but the opposite of dominant concentration index (0.1085, 0.1291 and 0.3366, respectively). The results showed that the stability of spring cotton and wheat sheath was better, The internal population volatility of the community buffer ability. Transgenic Bt cotton without cotton bollworm?