随着京郊蔬菜保护地生产的发展,黄瓜白粉病[Sphaerotheca fulignea(Schlec-ht.) poll.]近年来为害越来越严重,轻者减产10—20%,重者达50%以上,成为当前黄瓜生产上的一个主要问题。为此,我们从1982—1983年,对黄瓜白粉病进行了药剂防治试验,现小结如下。 一、试验方法 1.供试的 With the development of the production of vegetable reserve in the suburbs of Beijing, the damage of Sphaerotheca fulignea (Schlec-ht.) Poll. Has been more and more serious in recent years. The light yield is reduced by 10-20% and the weight is more than 50% The current cucumber production is a major problem. To this end, we from 1982-1983, cucumber powdery mildew drug control trials, are summarized as follows. First, the test method 1 for the test