论文部分内容阅读
杀虫双原粉系贵州省化工研究所在杀虫双水剂新工艺的基础上研制的一种水法高含量原粉,有效成分为:2-二甲胶基-1-硫代硫酸钠基-3=硫代硫酸基丙烷,简称单钠盐,其化学结构式为: 本试验所用90％杀虫双原粉为白色疏松细粒状结晶固体,极易溶于水,不溶于苯、醚,难溶于丙酮等有机溶剂。 经1984～85年的室内生测、小区药效及大面积防治试验结果表明,它与原来的杀虫双水剂对害虫具有同样的良好防效,尤其是对有机磷农药敌百虫、敌敌畏、乐果等产生了抗药性的蔬菜害虫,有特别显著的防治效果,为了能在蔬菜上迅速推广使用,同时进行了杀虫双在白菜上的残留量分析,据此初步拟定在蔬菜上的安全使用标准。现将结果分述如下。
Insecticidal double original powder Guizhou Institute of Chemical Insecticide Shuangshuai new technology developed on the basis of a high water content of the original powder, the active ingredient is: 2-dimethyl-1-sodium thiosulfate 3 = thiosulfate propane, referred to as monosodium salt, the chemical formula is: 90% insecticidal double powder used in this test for the white loose granular solid, easily soluble in water, insoluble in benzene, ether, Hard to dissolve in acetone and other organic solvents. The indoor test from 1984 to 1985, community efficacy and large-scale control test results show that it with the original insecticide Shuangshui on pests have the same good control effect, especially for organophosphorus pesticides trichlorfon, dichlorvos , Dimethoate and other vegetable pests have resistance, there are particularly significant control effect, in order to quickly promote the use of vegetables, pesticide residues in cabbage at the same time the analysis of the two, based on the preliminary formulation of the vegetables Safe to use standard. Now the results are as follows.