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1982年我们用粉锈宁对成都郊区积年流行、发病严重的黄瓜、豇豆白粉病进行了田间防治试验,取得了良好效果,现将试验结果报道如下。一、药剂和处理:参试药剂除15％粉锈宁可湿性粉剂(由四川省化工研究所提供)外,并增加了70％甲基托布津可湿粉(日本产)、50％霜霉灵可湿粉(天津人民农药厂产)和50％多硫磷乳油(天津农药厂产)等三种药剂,以进行药效比较。小区试验:试验地设在郊区保和公社的花果七队、东桂六队。黄瓜:于发病盛期(结瓜期)分别在6月12日和18日两次进行叶面喷雾。两次药液
In 1982, we used triadimenon for the annual epidemic in suburbs of Chengdu, cucumber and cowpea powdery mildew which were endemic in Chengdu. The field trials were conducted with good results. The test results are reported as follows. First, the agents and treatment: In addition to the test agent 15% Triadimen wettable powder (provided by the Sichuan Institute of Chemical Technology), and an increase of 70% thiophanate-methyl wettable powder (Japan), 50% downy mildew Wet powder (Tianjin People’s Pesticide Factory production) and 50% polyphosgene (Tianjin Pesticide Factory production) and other three agents for efficacy comparison. Community test: Experimental ground located in the suburbs Baohe commune of the Flower 7 teams, six teams of Dong Gui. Cucumber: At the peak of the disease (fruiting period), the foliar spray was conducted on June 12 and 18 respectively. Twice liquid