蔬菜生产栽培制度复杂,特别是保护地蔬菜生产的特定生态环境,造成多种病害严重发生,长期频繁地打农药、打保险药成为生产中常采用的一种防治策略。滥用农药的结果导致病虫抗性大幅度上升,天敌种群衰弱、杀灭,从而形成了防治方法单一、化学农药愈用愈多、病虫危害越来越严重的恶性循环。因此,以保护地蔬菜为对象,优先利用农业防治和生物防治措施,科学合理使用化学农药,配套各项防治措施,优化组合防治技 Vegetable production and cultivation system is complex, especially the specific ecological environment of vegetable production in protected areas, resulting in a serious occurrence of a variety of diseases, long-term frequent fight pesticides, insurance drugs become a production strategy often used in prevention and treatment. Abuse of pesticides results in a substantial increase in pest and disease resistance, natural enemy population weakness, killing, resulting in a single control methods, the more the more chemical pesticides, pests and diseases more and more serious vicious circle. Therefore, to protect vegetables as the object, give priority to the use of agricultural control and biological control measures, the scientific and rational use of chemical pesticides, supporting the prevention and control measures to optimize the combination of control technology