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1977年—1979年进行了20％三氯杀螨醇乳剂(河北沙城农药厂)对山楂红蜘蛛的效果试验,并以25％杀虫脒水剂(北京农药一厂)作对比,结果如下: 室内试验证明,20％三氯杀螨醇乳剂1000-2000倍杀卵率均在90％左右,略差于25％杀虫脒800倍的杀卵效果。2000-3000倍杀雌虫效果很好,不同世代测定结果,杀虫率均在95.5％以上,与25％杀虫脒800倍(99.6-100％),效果基本一致。 田间试验和大面积防治结果表明,果园防治山楂红蜘蛛,喷布20％三氯杀螨醇
1977 - 1979 20% dicofol emulsion (Hebei Shacheng Pesticide Factory) on the Hawthorn spider mite effect test and 25% of the pesticidal amidine water agent (Beijing Pesticide Factory) for comparison, the results are as follows: Laboratory tests show that, 20% dicofol emulsion 1000-2000 times the oviposition rate of about 90%, slightly worse than 25% chlordimeform 800 times the ovicidal effect. 2000-3000 times to kill the female good effect, different generations of measured results, the insecticidal rate was above 95.5%, and 25% chlordimeform 800 times (99.6-100%), the effect is basically the same. Field trials and large-scale control results show that orchard control hawthorn red spider, spray 20% dicofol