一、序言当今社会科学技术发展很快,对环境保护要求愈来愈重视,对发展新农药的要求也愈来愈严格,因此近年来创制新农药的发展速度较上世纪90年代减慢。据资料报道,目前国外大公司创制和开发一个新农药品种,耗时约8~10年,所耗资金约1.5亿美元,筛选的化合物近50000个,工作非常艰巨,因 I. Preface The rapid development of social science and technology today, more and more emphasis on environmental protection requirements for the development of new pesticides have become more stringent, so in recent years the pace of development of new pesticides slowed down compared with the 1990s. According to the information reported, at present large foreign companies to create and develop a new pesticide variety, took about 8 to 10 years, the cost of about 150 million US dollars, screening nearly 50,000 compounds, the work is very arduous, because