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农药杀虫效果的大小叫做毒力,农药的毒性是指农药对人、畜的危害程度。一般来说,有些农药的毒性与毒力的关系是一致的,也就是说,毒性越大则毒力也越大,因此,毒性大的农药,杀虫效力自然好,如一些无机类杀虫剂。但是也有不少农药,毒性与毒力不呈一致性,也就是说,毒性大的农药不一定对害虫的毒力也大。相反,毒性小的农药,毒力可以很强,如辛硫磷、敌百虫等高效低毒农药。所以我们不可厨毒性大小去推测毒力,也不能用毒力去推算毒
Pesticide insecticidal effect size is called virulence, pesticide toxicity refers to the extent of pesticide harm to humans and animals. In general, the toxicity of some pesticides and virulence are consistent, that is, the greater the toxicity the greater the virulence, therefore, toxic pesticides, insecticidal efficacy of natural good, such as some inorganic insecticide Agent. But there are also many pesticides, toxicity and toxicity are not consistent, that is, toxic pesticides are not necessarily toxic to pests are also large. In contrast, less toxic pesticides, virulence can be strong, such as phoxim, trichlorfon and other highly efficient and low toxicity pesticides. Therefore, we must not test the virulence of the virulence of virulence, we can not use virulence to calculate the toxicity