嘧菌酯与烯酰吗啉混配对防治黄瓜霜霉病的增效作用  

Synergism of the Mixtures of Azoxystrobin and Dimethomorph to Pseudoperonospora cubensis

作　　者：张蕊蕊[1] 胡伟群[1] 朱卫刚[1] 陈杰[2] 

机构地区：[1]浙江省化工研究院有限公司,国家南方农药创制中心浙江基地,杭州310023 [2]浙江省化工研究院有限公司国,家南方农药创制中心浙江基地,杭州310023

出　　处：《农药》2014年第6期436-438,共3页Agrochemicals

基　　金：“十二五”科技支撑计划项目(2011BAE06B08)

摘　　要：[目的]延缓嘧菌酯与烯酰吗啉两单剂抗药性的产生。[方法]通过孢子悬浮液喷雾接种法,测定嘧菌酯与烯酰吗啉及二者的5个配比对黄瓜霜霉病的室内毒力。[结果]通过孙云沛共毒系数法计算出,当嘧菌酯与烯酰吗啉质量分数比为3∶1时,二者表现最大的增效作用。[结论]该比例可以作为田间试验的指导比例。[Aims] The study aims to delay the pesticide resistance of azoxystrobin and dimethomorph. [Methods] By using spore suspension spray inoculation method, the indoor toxicity of azoxystrobin, dimethomorph and their mixtures were tested against cucumber downy mildew. [Results] The results showed that the mixtures of azoxystrobin with dimethomorph at ratio of 3 to 1 among the 5 mixed preparations showed the best synergism. [Conclusions] This result can be used as the guidance of field experiment.

关 键 词：嘧菌酯 烯酰吗啉 混配 黄瓜霜霉病 联合毒力 

分 类 号：S436.421[农业科学—农业昆虫与害虫防治]