农药可以给人们带来巨大的经济效益和社会效益,但是,如果使用不当,也可造成不良后果。众所周知,农林业没有农药作为坚强的后盾,要想获得连续的丰收是不可能的;在消灭危害人、畜的昆虫方面,如果没有农药,其后果也是不堪设想的。但农药是毒剂,对环境的污染也是不可否认的。这二者之间的矛盾如何克服?当前除化学家们不断合成高效、低毒、低残留的农药新品种外,我们在对有害生物的防治中,如运用综合治理(IPM),合理使用农药,也能减轻或避免污染,达到二者兼顾的目的。要做到合理使用农药,必须考虑: Pesticides can bring huge economic and social benefits to people, but they can also cause unpleasant consequences if used improperly. As everyone knows, agriculture and forestry without pesticides as a strong backing, in order to obtain continuous harvest is impossible; in the elimination of endangering humans, livestock insects, without pesticide, the consequences would be unimaginable. However, pesticides are poison and the pollution of the environment is undeniable. At present, apart from the continuous synthesis of new pesticides with high efficiency, low toxicity and low residual by chemists, we are trying our best to prevent and control pests, such as using integrated management (IPM), rational use of pesticides , Can also reduce or avoid pollution, to achieve the purpose of both. To achieve the rational use of pesticides, we must consider: