随着大棚黄瓜生产的发展,黄瓜枯萎病、白粉病、霜霉病这二大病害日趋严重;一般减产30—40％,重病田达70—80％,已成为黄瓜生产上的一大障碍。但在防治上一些常规药剂防效不理想,为了解决这一问题,1987—1989年,我们引进生物杀菌剂农抗120在安子营、杨营、城关、城郊、候集、贾宋6个乡镇的59个大棚135.7亩黄瓜及719.9亩露地瓜田进行防治试验示范。黄瓜品种为津研4号,选历 With the development of greenhouse cucumber production, cucumber wilt, powdery mildew and downy mildew are the two serious diseases; the general reduction of 30-40%, severe disease up to 70-80%, has become a cucumber production obstacles. In order to solve this problem, in 1987-1989, we introduced the biotic fungicide Nongkang 120 in 6 towns and townships such as Anziying, Yangying, Chengguan, Suburb, Of the 135 greenhouses of 135.7 acres of cucumber and 719.9 acres of melon open field test demonstration. Cucumber varieties for the Jin Research No. 4, election calendar