5%烯酰吗啉粉尘剂对黄瓜霜霉病的防治效果  

Control Efficacy of 5% Dimethomorph DPC on Cucumber Downy Mildew

作　　者：朱发娣 谢学文[2] 李建明[2] 谷祖敏[1] 李宝聚[2] 

机构地区：[1]沈阳农业大学植物保护学院,辽宁沈阳110866 [2]中国农业科学院蔬菜花卉研究所,北京100081

出　　处：《中国蔬菜》2015年第2期49-51,共3页China Vegetables

基　　金：公益性行业(农业)科研专项(201303112);大宗蔬菜产业技术体系建设专项(CARS-25);中国农业科学院科技创新工程项目

摘　　要：采用盆栽法与田间药效小区试验法,测定5%烯酰吗啉粉尘剂喷粉施药对黄瓜霜霉病(Pseudoperonospora cubensis)的防治效果。结果表明:采用5%烯酰吗啉粉尘剂喷粉施药,对黄瓜霜霉病具有良好的防治效果,对黄瓜无药害。盆栽试验中,按11.25ga.i.·(667m2)-1剂量喷粉施药1次,防效为89.13%;田间试验中,按11.25ga.i.·(667m2)-1剂量间隔7d喷粉施药3次,第3次施药7d后的防效达86.64%。The control efficacy of 5% Dimethomorph DPC on cucumber downy mildew caused by Pseudoperonospora cubensis was evaluated by pot experiment and field plot trial method. The results showed that 5% Dimethomorph DPC presented a good control effect on cucumber downy mildew. The pot trial efficacy of 5% Dimethomorph DPC with dosage of 168.75 g a.i. ·hm^-2 on cucumber downy mildew was 89.13%, and the final field control efficacy of plot trial was 86.64%, with a dosage of 168.75 g a.i. ·hm^-2 dusting for 3 times at 7 days intervals. There was not any phytotoxicity on cucumber.

关 键 词：黄瓜霜霉病 粉尘剂 烯酰吗啉 防治效果 

分 类 号：S436.421[农业科学—农业昆虫与害虫防治]