随着化学农药使用数量的增加和使用范围的扩大,害虫对杀虫剂产生了抗药性,并且发展很快。害虫抗药性已成为农业保产的重大障碍。而合理使用农药,则可以延缓害虫抗药性的产生和发展。 一、影响抗药性产生的主要因子 适应了杀虫剂的有毒环境而生存下来的 Pesticides are resistant to pesticides as the number of chemical pesticides used increases and the range of use increases, and development is rapid. Pest resistance has become a major obstacle to agricultural production. The rational use of pesticides, you can delay the emergence and development of pest resistance. First, the main factors affecting the resistance to pesticides adapted to the toxic environment and survive