防治无公害蔬菜病虫害有效的方法有两种:一种是采用物理方法防治;一种是采用生物方法防治。一、物理防治采用物理方法防治蔬菜病虫害是一种较理想的无公害防治方法。物理防治是指通过栽培设施创造不利于病虫发生但却有利于或无碍于作物生长的生态条件的防治方法。它可通过病虫对温度、湿度或光谱、颜色、声音等的反应能力,用调控办法来控制病害发生,杀死、驱避或隔离害虫。目前已有多种方法应用于生产 There are two effective ways to prevent and control pollution-free vegetable diseases and pests: one is to use physical methods to prevent and control; the other is to use biological methods to prevent and control. First, the physical control The use of physical methods to control pests and diseases of vegetables is a more ideal method of pollution prevention and control. Physical control refers to the prevention and control of the ecological conditions that are not conducive to the occurrence of pests and diseases but conducive or not to crop growth through cultivation facilities. It can control diseases by controlling the temperature, humidity or spectrum, color, sound and other diseases and insect pests, kill, repel or isolate pests. There are a number of ways to apply it to production