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为了防止或延缓害虫抗性的发生,我们研制成功了一种复配杀虫剂——快杀净乳油,经室内对家蝇药效测定LD_(50)=0.0029μg/,共毒系数为189,增效倍数9.7,KT_(50)=4.0829分;对棉铃虫药效测定LD_(50)=0.0027μg/头,共毒系数357.8,增效倍数5.7;对棉蚜虫药效测定LC_(50)=0.0086％,共毒系数271.2,增效倍数3.2。田间药效试验,用于防治棉铃虫使用浓度1500—2000倍,施药7天后防效达85％以上,防治棉蚜虫使用浓度2500—3000倍。施药7天后防效达90％以上。
In order to prevent or delay the occurrence of pest resistance, we successfully developed a compound insecticide - fast kill net cream, the indoor test on the efficacy of housefly LD_ (50) = 0.0029μg /, a total toxic coefficient of 189 (50) = 0.0027μg / head, the co-toxicity coefficient was 357.8, and the synergistic multiplication factor was 5.7. The pharmacodynamics of LC 50 of cotton aphid (50) = 0.0086%, co-toxic coefficient of 271.2, synergy multiple 3.2. Field efficacy test for the control of the use of cotton bollworm concentration of 1500-2000 times, 7 days after spraying control effect of more than 85%, cotton aphids control the concentration of 2500-3000 times. 7 days after the application of anti-control effect of more than 90%.