1保护地蔬菜病虫为害对农业生产的影响调查结果表明,我市保护地蔬菜病害重于虫害。以保护地黄瓜为例,常见病害有苗期的猝倒病、立枯病、沤根、根腐病、灰霉病等,这些苗期病害常常造成死苗或毁种。黄瓜生长生育期会发生霜霉病、角斑病、灰霉病、黑星病、病毒病、枯萎病、白粉病等。对黄瓜产量和品质造成大的影响的还是以黄瓜霜霉病、角斑病、灰 1 Protected vegetable pest damage on agricultural production survey results show that the city of vegetables in the protected area is more important than pests. To protect the cucumber, for example, the common diseases are seedling damping-off disease, blight, root, root rot, gray mold disease, seedling diseases often cause dead seedlings or destroyed species. Cucumber downy mildew, angular leaf spot, gray mold, scab, virus disease, blight, powdery mildew and so on. Cucumber downy mildew, angular leaf spot, gray on the yield and quality of cucumber