近代杀虫药剂里,以氯化碳氢化合物类和有机磷酸酯类发展最快。在这两大类化合物中,概括的说:属於有机磷酯类的杀虫剂的,如“E-605”、“HETP”及“TEPP”等,具有高度的杀虫效力,对於高等动物也很毒。尤其是後两种化学性不稳定,容易在稀释後或在碱性溶液里起水解作用而失去效力,故施用於植物上或其他物体上除治害虫,只能在短时期内发挥药效。近来又有新的具有良好内吸杀虫作用的内吸杀虫剂如E-1059等,差不多都是E-605的衍生物,是今後有机磷杀虫剂的新发展方向,但对哺乳动物的毒性很强。一般具有内吸杀虫作用的有机磷杀虫剂对咀嚼口器害虫效力不很好。氯化碳氢化合物类的杀虫剂,如“DDT”、“1068”和“666”等,对昆虫的毒力虽次於前一类,但对高等动物的毒力小,化学性较稳定,不易分解,残留於植物上的药效比较持久。因此这类化合物仍具有相当的重要性。此外还有两种属於氯化碳氢 In modern pesticides, chlorinated hydrocarbons and organophosphates are the fastest growing. In these two broad categories of compounds, it is generally stated that pesticides belonging to organophospholipids, such as “E-605”, “HETP” and “TEPP”, have a high insecticidal efficacy and are highly effective against higher animals Very toxic. In particular, the last two chemical instability, easy to dilute or hydrolyzed in alkaline solution and lost its effectiveness, so applied to plants or other objects in addition to pest control, can only play a short period of efficacy. Recently, there are new systemic insecticides with good internal insecticidal action such as E-1059, which are almost all derivatives of E-605 and are the new development direction of organophosphate insecticides in the future. However, mammals Very toxic. Organophosphorus insecticides, which generally have a systemic insecticidal effect, are not effective against chewing mouthparts. Chlorinated hydrocarbons such as “DDT”, “1068” and “666” are the most toxic insecticides to insects, but are less toxic and chemically stable to higher animals , Not easy to decompose, the efficacy of the residue on the plant more durable. Therefore, these compounds are still of considerable importance. In addition there are two kinds of carbon monochloride