长期使用化学农药会带来许多问题:昆虫产生抗药性并导致农药剂量加大;粮食、水果、蔬菜积累残毒,从而使野生和家养动物体内残毒增加。经有关部门化验研究,有的农药已被证实有致癌、致畸、致突变的作用,因此许多西方国家已用生物农药取代化学农药。 近年来,越来越多的农药残留限量标准正成为国际 The long-term use of chemical pesticides will bring many problems: insects produce resistance and lead to increased pesticide doses; food, fruits, and vegetables accumulate toxic residues, thereby increasing the residual toxicity of wild and domestic animals. After laboratory tests by relevant departments, some pesticides have been proven to have carcinogenic, teratogenic, and mutagenic effects. Therefore, many western countries have used biological pesticides instead of chemical pesticides. In recent years, more and more pesticide residue limit standards are becoming international