实行生产责任制以后,群众对防治作物虫害积极性很高。在生产上存在着有虫就治,甚至提出彻底、干净、全部消灭的口号,这就必然造成浪费,提高成本。因此,防治害虫应以生态学的原则进行指导,即要考虑害虫种群动态,又要考虑与环境的关系,用多种 After the implementation of the system of production responsibility, the masses have a high degree of enthusiasm in the prevention and control of crop pests. In production, there are worms and even slogans that are completely, cleanly and completely eliminated. This inevitably results in waste and costs. Therefore, the prevention and control of pests should be guided by the principle of ecology, that is to consider the pest population dynamics, but also consider the relationship with the environment, with a variety of