河南草莓褐色叶斑病病原菌的鉴定及防治药剂筛选  

Pathogenic Bacteria Isolation and Identification of Brown Leaf Spot on Strawberry in Henan Province and Screening of Control Fungicides

作　　者：袁洪波 王卓妮 覃艮红 史冰柯 王丽[1] 侯珲[1] 巩文峰[2] 涂洪涛[1] YUAN Hongbo;WANG Zhuoni;QIN Genhong;SHI Bingke;WANG Li;HOU Hui;GONG Wenfeng;TU Hongtao(Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences,Zhengzhou 450009,Henan,China;Tibet Agricultural and Animal Husbandry College,Linzhi 860000,Xizang,China)

机构地区：[1]中国农业科学院郑州果树研究所,河南郑州450009 [2]西藏农牧学院,西藏林芝860000

出　　处：《中国蔬菜》2023年第11期63-68,共6页China Vegetables

基　　金：国家重点研发计划项目(2022YFD1600702),中国农业科学院科技创新工程项目(CAAS-ASTIP-2016-RIP),中国农业科学院郑州果树研究所科研业务费专项(ZGS202205,1610192023311)。

摘　　要：为明确河南草莓主产区草莓褐色叶斑病的病原菌种类,筛选安全有效的杀菌剂,利用组织分离法从河南草莓病株上分离纯化得到草莓褐色叶斑病的病原菌,并对6种杀菌剂进行筛选和防效评价。经形态学和分子生物学鉴定该病原菌为Pilidium concavum。6种杀菌剂中以450 g·L^(-1)咪鲜胺水乳剂抑菌效果最好,对草莓褐色叶斑病的防效达到83%,其EC50为2.4497 mg·L^(-1),可作为河南草莓褐色叶斑病田间防治的候选药剂。In order to definite the pathogenic bacteria species of strawberry brown leaf spot in main strawberry production regions of Henan Province,and screen safe and effective control fungicides,this study separated and purified pathogenic bacteria of strawberry brown leaf spot from diseased strawberry plants in Henan,screened 6 kinds of fungicides,and evaluated their control effects.This pathogenic bacteria was identified by morphology and molecular biology as Pilidium concavum.Among the 6 fungicides,the antibacterial effect of 450 g·L^(-1) prochloraz water emulsion was the best.Its control effect on strawberry brown leaf spot reached 83%,and its EC50 was 2.4497 mg·L^(-1).It could be used as a candidate agent for field control on Henan strawberry brown leaf spot.

关 键 词：草莓 褐色叶斑病 病原鉴定 EC50 杀菌剂 防效 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治]