成都市郊蔬菜种类繁多,复种指数大,因而病害发生日益严重。常用药剂因抗性增加,一般效果较差,已不能满足生产上的需要。为了寻找更多的有效药剂品种,1987年作者在近郊5种蔬菜上对霜霉病、晚疫病、白粉病进行田间药效试验,取得初步结果,现整理于下: 药剂:50％甲双铜可湿粉(成都植物生长素厂) 25％甲双灵可湿粉(江苏南通染化 There are a large variety of vegetables in the outskirts of Chengdu, with a large multiplication index, so the disease is becoming more and more serious. Commonly used drugs because of increased resistance, the general effect is poor, can no longer meet the production needs. In order to find more effective varieties of medicinal plants, in 1987, the authors carried out field efficacy tests on downy mildew, late blight and powdery mildew on five kinds of vegetables in the suburbs. The preliminary results were obtained and are summarized as follows: Pharmacy: 50% Methylbis Wettable powder (plant auxin plant in Chengdu) 25% Methyl Shuangling wettable powder (Jiangsu Nantong dyeing