保护地生产与露地不同,保护地温度高,湿度大,空气不流通,重迎茬严重,有利于各种病虫害的发生和流行。主要病害有黄瓜霜霉病、角斑病、炭疽病、白粉病、黑星病、菌核病;番茄叶霉病、灰霉病、疫病:青椒炭疽病等。王要害虫有蚜虫、自粉 Protection of production and open field is different from the protection of high temperature and humidity, the air is not in circulation, serious heavy welt, is conducive to the occurrence and prevalence of various pests and diseases. The main diseases are cucumber downy mildew, angular leaf spot, anthracnose, powdery mildew, scab, sclerotinia; tomato leaf mold, gray mold disease, epidemic: green pepper anthracnose and so on. Wang pests have aphids, since the powder