1　前言嘧啶磷,通用名ｐｉｒｉｍｉｐｈｏｓ-ｅｔｈｙｌ〔1〕,是一种中等毒性的农药,对生活在土壤中和地表的双翅目和鞘翅目害虫有广谱的杀虫作用。无药害,可作种子处理使用,也可与杀菌剂混用。化学名称:Ｏ,Ｏ-二乙基-Ｏ-(2-二乙胺基-6-甲基嘧啶-4-基)硫逐磷酸酯,其结构式为:Ｎ 1 Introduction Pyrimiphos-methyl, commonly known as pirimiphos-ethyl [1], is a moderately toxic pesticide that has a broad-spectrum insecticidal effect on Diptera and coleopteran pests that live in the soil and on the surface. No injury, can be used for seed treatment, but also can be mixed with fungicides. Chemical Name: O, O-diethyl-O- (2-diethylamino-6-methylpyrimidin-4-yl) thiophosphate, the structural formula is: N