通过大棚内光照、温度、湿度等,创造有利于蔬菜生长发育,而不利于病虫害发生发展的生态环境条件,可减少和减轻病害发生,例如,瓜类等蔬菜作物的霜霉病、灰霉病、白粉病在高于32℃和相对于湿度低于80%的条件下,病菌不产生孢子,病害不发生或发生缓慢。1.光照对蔬菜大棚光照管理上, Through the greenhouse light, temperature, humidity, etc., to create conducive to the growth of vegetables, but not conducive to the development of pests and diseases of the ecological environment conditions can reduce and reduce the occurrence of diseases, such as melons and other vegetable crops downy mildew, gray mold , Powdery mildew at temperatures above 32 ℃ and relative humidity of less than 80%, the bacteria do not produce spores, disease does not occur or slow. 1. Light on the greenhouse vegetable lighting management,