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五、实行挑治,减少用药面积我省推广了看虫情定防治面积,看虫种定防治方法,看虫量定用药量的经验,既节省农药,又减少了对天敌的杀伤.铁岭农科所用间隔施药法防治大豆蚜,每隔10垄防10垄,防效好,农药节省50%,还保护了部分天敌.六、掌握施药适期选择对害虫杀伤力最大而对天敌杀伤较小的时机施药,对保护天敌很重要.绥中县李家公社石碑坊大队,根据红蜘蛛和卷叶虫春天出蛰盛期(出蛰70%),时值国光的花序伸出至分离,天敌还没有出来的时候喷一次非选择
Fifth, the implementation of pick governance, reduce the area of medication to promote the province to see the area of pest control, see pest species set prevention and control methods to see the amount of fixed dose of insect experience, both to save pesticides, but also reduce the killing of natural enemies. Branch interval pesticides used to control soybean aphids, every 10 ridge anti-10 ridge, good control effect, pesticide savings of 50%, but also protect some of the natural enemies. Sixth, grasp the appropriate application of pesticides on the pest killing the largest and natural enemy damage Smaller timing of pesticide application is very important for the protection of natural enemies.Sizhongfang Li Shili commune Stelafilm brigade Suizhong County, according to the red spider and leaf roller spring out of the dormant (70% Separation, natural enemies have not come out when spraying a non-choice