农药向着高药效低用量的方向发展,但一个对有害生物具有高毒力的化合物能否成为农药,是取决于它对人畜具有低的毒性和高度的安全性。因此,目前各国的农药研究已趋向把较少的力量和经费用于新品种的研制上,而是把较多的力量和经费用于农药对环境影响的试验和残留分析等方面的研究上。农药的安全性包括范围很广,有对农药的生产,运输,贮藏、销售、田间施用等工 The development of pesticides towards high efficacy and low dosage, but a compound with high virulence to pesticides can become a pesticide, it is dependent on its low toxicity and high safety to humans and animals. Therefore, at present, pesticide research in all countries has tended to devote less effort and expense to the research of new varieties, but put more effort and expense on the research on pesticide’s environmental impact test and residue analysis. The safety of pesticides includes a wide range of pesticides production, transportation, storage, marketing, field application and other workers