根据《中华人民共和国农药管理条例》,农药是指用于预防、消灭或者控制危害农业、林业的病、虫、草和其他有害生物,以及有目的地调节植物、昆虫生长的物质。农药既应用于农业生产,又在林业、畜牧业、渔业、卫生防疫、城市环境保护等方面扮演着重要角色。据联合国粮农组织调查, According to the Pesticide Regulations of the People’s Republic of China, pesticides refer to substances that are used to prevent, eliminate or control diseases, insects, grasses and other pests that endanger agriculture and forestry, and to purposefully regulate the growth of plants and insects. Pesticides are not only used in agricultural production, but also played an important role in forestry, animal husbandry, fishery, health and epidemic prevention, and urban environmental protection. According to the UN Food and Agriculture Organization survey,