实施蔬菜生产无公害化是人们生态意识和生活质量意识提高的必然要求，也是发展商品生产，特别是我国即将加入WTO的客观要求。蔬菜在生长过程中，除了受农药公害的影响外，工业三废（废水、废渣、废气）以及污水、酸雨、不合理施用化肥均属差菜的公害。因此蔬菜病草害的无公害防 The implementation of pollution-free vegetable production is an inevitable requirement for people’s awareness of ecological and quality-of-life improvement. It is also an objective requirement for the development of commodity production, especially for China’s imminent accession to the WTO. Vegetables in the growth process, in addition to the impact of pesticide pollution, industrial waste (waste water, waste residue, waste gas) and sewage, acid rain, irrational use of chemical fertilizers are poor vegetables. Therefore, the disease-free vegetable pollution prevention