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用生物农药千胜+1.8%虫螨克、千胜+1.8%虫螨克+20%新杀虫王乳油混用,分别防治花生田二、三代棉铃虫,具有较好的防治效果,药后3d校正防效分别为90.4%和91.0%。仅前二者混用,防治二代棉铃虫效果,药后5d为92.2%,药后7d高达94.8%。
With biological pesticides 1000 + 1.8% pest mites, 1000 + 1000% mites pest mites + 20% new insecticide Wang EC, respectively, peanut field control two and three generations of cotton bollworm, has good control effect after 3 d Corrective control effectiveness was 90.4% and 91.0% respectively. Only the first two were mixed to prevent and cure the second generation cotton bollworm effect, which was 92.2% after 5 days and 94.8% after 7 days.