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黄瓜霜霉病是日光温室黄瓜的主要病害,流行时间长,为害严重,它还是春棚和露地黄瓜霜霉病的重要菌源地。因此,抓好日光温室黄瓜霜霉病防治尤其重要。1 日光温室黄瓜霜霉病防治的三个关键期1.1 定植这是防治的第一关。通常为了利于缓苗,定植后即浇水,并闭室保温,尤其是夜间。因此,棚内湿度大,叶面结露时间长,瓜苗长势弱是当时黄瓜生产的主要特点,如果定植苗带有霜霉病,防治不及时或用药不对路,则霜霉病大流行并毁种的可能性极高。因此在定植前、后,选用对路的保护剂或治疗剂
Cucumber downy mildew is the main disease of greenhouse cucumber, popular for a long time, serious damage, it is spring shed and open field cucumber downy mildew important source. Therefore, a good grasp of solar greenhouse cucumber downy mildew prevention is particularly important. A solar greenhouse cucumber downy mildew prevention and control of the three key issues 1.1 colonization This is the first control. Usually in order to facilitate Huanmiao, watering after planting, and closed room insulation, especially at night. Therefore, the shed humidity, foliar dew a long time, cucumber growth is weak is the main characteristics of the cucumber production at that time, if the planting seedlings with downy mildew, prevention and treatment is not timely or not medication, the downy mildew pandemic and The possibility of devastating species is extremely high. Therefore, before planting, after the selection of the road protection agent or therapeutic agent