农药产品面临“改朝换代”农药是用来影响和调控有害生物生长发育或繁殖的特殊功能分子。中国工程院院士李正名介绍,每年全世界有10亿吨左右的庄稼毁灭于病虫害,由于病虫害造成的庄稼减产幅度达20%～30%。因此,农药自发明以来就在农业发展史中扮演重要角色。直到今天,农药的作用仍然不可替代。 Pesticide products are facing “pesticide change ” Pesticide is a special functional molecule used to influence and regulate the growth and reproduction of pests. Li Zhengming, an academician of the Chinese Academy of Engineering, introduced that about 1 billion tons of crops worldwide are destroyed by pests and diseases each year, and crop yields due to pests and diseases are reduced by 20% to 30%. Therefore, pesticides have played an important role in the history of agricultural development since their invention. Until today, the role of pesticides is still irreplaceable.