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黄瓜细菌性角斑病〔Pseudomonas lachrymans(Smith et Bryan)Carsn〕是我区目前生产上严重危害黄瓜的一种病害。经调查发病面积在一千亩以上,病叶率75％,减产30——45％,已对黄瓜的稳产高产造成了威胁。为了筛选防治该病的有效药剂,1988年用四种农药进行药剂防效试验。一、试验材料及方法: 1.试验地情况:试验地设在武威市金羊乡窑沟村,试验面积为0.8亩,试验地前茬为小麦,肥力中等,黄瓜品种为金棒子。 2.供试药剂:58％甲箱灵锰锌,68％瑞毒铝铜可湿性粉剂,30％DT胶悬剂,农用抗菌素120。 3.处理内容:DT胶悬剂500倍液,甲箱
Pseudomonas lachrymans (Smith et Bryan) Carsn is one of the most serious cucumber diseases in our region. After the investigation of the disease area of more than a thousand acres, the diseased leaf rate of 75%, cut 30 - 45%, has a cucumber yield and threaten the stable and high yield. In order to screen for an effective agent for the prevention and treatment of the disease, four pesticides were used in 1988 to carry out drug control tests. First, the test materials and methods: 1. Test conditions: Experimental site located in Wuyang City, Jinyang Township Yaogou Village, the test area of 0.8 acres, the test before the crop is wheat, medium fertility, gold varieties of cucumber. 2. For the test agents: 58% of the box of zinc and zinc, 68% Ruoxu aluminum copper WP, 30% DT plasticizer, agricultural antibiotics 120. 3. Processing content: DT 500 times suspension of plastic, crates