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文中通过利用 2 0 %灭多威与 40 %久效磷和 5 0 %甲基 1 6 0 5乳油的不同配比混配 ,并于棉田 3代玉米螟卵孵高峰期进行了田间药效对比试验 ,筛选出的混配剂A1对玉米螟具有 90 %左右的治虫和保铃效果 ,且药效稳定 ;经对A1配方进行室内毒力测定 ,证明该剂的共毒系数为 1 4 0 1 5 ,有明显的增效作用 ;30hm2 的面上示范结果又有力地验证了上述室内外试验的有关研究结论
In this paper, by using 20% methomyl mixed with 40% monocrotophos and 50% methyl-1,600 emulsifiable concentrates, the field efficacy was compared in the third-generation corn borer Test, the screening of the compound A1 on the corn borer has about 90% of pest control and boll effect, and the efficacy is stable; the A1 formula for indoor toxicity determination showed that the agent co-toxicity coefficient of 1401 5, there is a clear synergy; 30hm2 the face of the demonstration results and validate the above-mentioned indoor and outdoor experiments on the conclusions of the study