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针对运城地区保护地黄瓜面积不断扩大、病害日趋严重、打药次数频繁、劳动强度大等具体情况,我们于1990年在保护地春黄瓜和秋冬茬黄瓜上进行了百菌清粉尘防治病害试验,效果十分显著。保护地春茬黄瓜在闻喜县新生村景华录的1.2亩保护地进行.喷药从3月5日开始,每7天1次,共喷7次,每次1公斤,喷后调查霜霉病,6次平均发病率4％,病情指数1.31;灰霉病发病率3.2％;炭疽病发病率
According to the specific situation of cucumber area in Protected area in Yuncheng area, the disease is becoming increasingly serious, the frequency of the fight, the labor intensity and so on, we carried out the test of the disease prevention and control of chlorothalonil dust on the protective spring cucumber and cucumber in autumn and winter in 1990. Very significant. Protected spring cucumbers in Wenxi County Xinshengcun Jinghua recorded 1.2 acres of protected areas spraying from March 5 onwards, once every 7 days, a total of 7 times a spray, each 1 kg, spray after the investigation frost Mildew, the average incidence of 6 times 4%, the disease index 1.31; the incidence of gray mold 3.2%; the incidence of anthrax