黑龙江省马铃薯晚疫病菌对甲霜灵药剂的敏感性测定  

Sensitivity of Phytophthora infestans to Metalaxyl in Heilongjiang

作　　者：孙秀梅[1,2] 马颜亮[1] 白雅梅[3] 文景芝[2] 金光辉[1] 吕文河[2] 

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆163319 [2]东北农业大学农学院,黑龙江哈尔滨150030 [3]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《中国马铃薯》2009年第2期72-74,共3页Chinese Potato Journal

摘　　要：利用菌落直径法对2008年黑龙江省4个地区53株马铃薯晚疫病菌的甲霜灵药剂敏感性进行了研究,结果表明,黑龙江省马铃薯晚疫病菌中对甲霜灵药剂具有抗药性的菌株占很大比重,但是区域间抗药菌株的出现频率具有很大差异,其中牡丹江、哈尔滨地区抗药菌株达到了100%,海伦的抗药菌株为23.08%,加格达奇没有出现抗药菌株。本研究对在黑龙江省科学合理地使用苯基酰胺类杀菌剂防治马铃薯晚疫病具有重要意义。The sensitivity of 53 isolates, collected from 4 locations in Heilongjiang in 2008, to Metalaxyl was investigated by measuring the diameter of colony in culture medium. Metalaxyl resistant isolates made up a large proportion of total isolates collected, but the frequency of Metalaxyl resistant isolates varied largely in various locations, with resistant isolates being 100% in both Mudanjiang and Harbin, 23.08% in Hailun, and no resistant isolate being found in Jiagedaqi. These findings have important implication for guiding spray of Phenylamide Fungicide for control of potato late blight in Heilongiang.

关 键 词：马铃薯 晚疫病菌 甲霜灵 敏感性 

分 类 号：S435.32[农业科学—农业昆虫与害虫防治]