浙江省推行农作改制、扩种双季连作水稻以后,曾受到三化螟害的严重威胁。虽然开展了大规模的药剂防治运动,挽回了很大的损失;但由于螟虫繁殖力强、适应性广,还必须继续深入进行防治。同时,从多、快、好、省地消除螟害,与长期控制不使螟害回升的要求来衡量当前的治螟工作,还有相当的差距。近年来学习毛主席论战略、战术著作, After the introduction of agricultural restructuring in Zhejiang Province and the expansion of double-cropping rice, it has been seriously threatened by the damage of the three rice stem borers. Although large-scale drug control campaigns have been carried out, a great loss has been recovered; however, due to the strong reproductive capacity and wide adaptability of stem borers, further prevention and control must be continued. At the same time, there is still a long way to go to eliminate the stem borer from more, faster, better and more economically, and to control the current work on the stem borers instead of the long-term control that does not cause them to pick up. Studying Chairman Mao’s theory and tactics in recent years,