不施农药防治蔬菜病虫害技术,不仅可减轻蔬菜的农药污染,降低成本,而且有利于生产无公害蔬菜,发展蔬菜出口贸易。现将其技术介绍如下。一、物理措施防治病虫害 1.晒种、温汤浸种、盐水浸种在播种前,选择睛日将蔬菜种予晒2～3天,可利用阳光杀灭附在种子表面的病菌,减少发病。瓜类、茄果类蔬菜的种子用55℃温水浸种10～15分钟,豆科和十字花科蔬菜的种子用 Not applying pesticides to control pests and diseases of vegetables can not only reduce pesticide pollution in vegetables and reduce costs, but also conducive to the production of pollution-free vegetables and the development of vegetable export trade. Now its technology is as follows. First, the physical measures to prevent pests 1. Sun species, soaking soup, salt watering Before sowing, select the day of the sun will be vegetables for 2 to 3 days, the sun can be used to kill the bacteria attached to the seed surface to reduce the incidence. Melons, solanaceous vegetables, seeds soaked with 55 ℃ warm water for 10 to 15 minutes, legumes and seeds of cruciferous vegetables