引言农药是指有毒性或刺激性的化合物质,广义言之包括杀虫剂、杀菌剂、杀草剂、杀病毒剂、生长剂、矮壮剂等。自十九世纪七十年代米拉特德创造波尔多液以后,植物病害防治进入新的历史阶段,以后有石硫合剂、铜皂液、炭酸铜、硫酸亚铁等无机农药问世。从药性来 Introduction Pesticide refers to toxic or irritating compounds, including broad-spectrum insecticides, fungicides, herbicides, viricides, growth agents, short stature agents and so on. Since the creation of Bordeaux mixture by Milatede in the 1870s, plant disease control has entered a new historical stage. Later, inorganic pesticides such as limestone, copper soap, copper carbonate and ferrous sulfate were introduced. Come from the medicine