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根据调查,转Bt基因棉大面积种植后,棉铃虫、红铃虫发生减轻;棉叶螨发生加重,为害时间延长;甜菜夜蛾、斜纹夜蛾发生面积扩大,为害程度加重。据此初步提出了当地转Bt基因棉害虫防治中应注意的问题和管理对策。
According to the survey, the transgenic cotton bollworm and bollworm were relieved when they were planted in large area. The mite mite aggravated and the harm time prolonged. The area of beet armyworm and Spodoptera litura enlarged and the degree of harm increased. Based on this, the problems and management countermeasures that should be paid attention to in the prevention and control of Bt transgenic cotton were proposed.