防治大棚黄瓜霜霉病三法一、地面覆盖法；据试验，在大棚采用地面覆盖的方法：如用地膜、稻草、炉灰渣等全部或部分覆盖，会减少土壤水分散失，降低大棚内的空气湿度，造成不利于黄瓜霜霉病发生的环境条件，对防治该病有良好的辅助作用，二、肥液喷洒法：据试验，在黄瓜生... Prevention and control of greenhouse cucumber downy mildew three methods First, the ground cover method; According to the test, the method of using the ground cover in the greenhouse: such as covering all or part of the film, straw, furnace slag, will reduce soil moisture loss and reduce the greenhouse Air humidity, resulting in detrimental to the cucumber downy mildew occurred in the environmental conditions, the prevention and treatment of the disease has a good supporting role, two, fertilizer spray method: According to the test, the cucumber raw ...