黄瓜霜霉病是古田县黄瓜上最主要病害,我站已2003年开展应用50%福美双可湿性粉剂防治黄瓜霜霉病试验,现将结果报告如下: 1 试验条件 1.1 试验地点设在福建古田,海拔300米, 土质为沙壤土,土壤肥力中等,黄瓜品种为早青2号,亩株数3000株,施药时黄瓜处开花期,9点左右用药。 Cucumber downy mildew cucumber is the most important disease in Gutian County, I station in 2003 to apply 50% biotech dual wettable powder control cucumber downy mildew test, the results are reported as follows: 1 Test Conditions 1.1 Test site located in Fujian Gutian , 300 meters above sea level, the soil is sandy loam soil, soil fertility is medium, the cucumber variety is Zaogeng No.2, the number of mu plants is 3000, the cucumber is in the flowering stage and the drug is applied at about 9 o’clock.