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自从第二次世界大战结束以来,有机合成的农药大量发展,到目前,化学农药的原药品种数目已有500多种,资本主义世界中的年产量以原药计算达150～200万吨。这些农药在保护农作物,消灭和控制农业和卫生害虫方面起了相当大的作用;但是也可能会给人畜带来一定的危害并污染环境。在一些资本主义国家中由于滥用农药,已造成严重的公害,遭到舆论的谴责,引起人们极大的关注。防治农药
Since the end of the Second World War, there has been a large number of organic synthetic pesticides. Up to now, there are more than 500 kinds of chemical pesticides. The annual output in the capitalist world is estimated at 15 to 2 million tons on the basis of the original drug. These pesticides have played a considerable role in the protection of crops, the eradication and control of agricultural and hygienic pests, but they can also cause some harm to humans and animals and pollute the environment. In some capitalist countries, the abuse of pesticides has caused serious public nuisance and has been condemned by public opinions, arousing great concern. Prevent pesticides