Investigation and Prevention of Leaf Spot in Radix Pseudoxtellariae in Southeast State of Guizhou Province  

贵州省黔东南州太子参斑点病的调查及防治(英文)

作　　者：张国辉[1] 张西平[1] 贺定翔 

机构地区：[1]凯里学院环境与生命科学分院,贵州凯里556000 [2]贵州省黔东南州信邦中药饮片有限责任公司,贵州凯里556013

出　　处：《Plant Diseases and Pests》2011年第1期21-23,48,共4页植物病虫害研究（英文版）

基　　金：Supported by Natural Science Project in Educational Commission of GuizhouProvince(QJK2007105)~~

摘　　要：[ Objective] The paper was to isolate the pathogen of leaf spot in Radix pseudoxtellariae, and to select the best fungicide with good antibacterial effectagainst the disease. [ Method] The pathogen was isolated from the diseased leaves, and the antibacterial activities of four fungicides including carbendazim, chlorothalonil, thiophanate-methyl and mancozeb against the pathogen were measured through mycelial growth method. [ Result ] The microscopic examination resultsshowed that the main pathogens of leaf spot in R. pseudoxtellariae were Phyllosticta commonsii and Alternaria sp.. Antibacterial results showed that four fungicidesall had apparent inhibition effect against leaf spot in R. pseztdoxtellariae, of which carbendazim had the best effect with the inhibition rate of 76.6% ; followed bythiophanate-methyl with the inhibition rate of 72.3% ; the third was mancozeb with the inhibition rate of 68.7%, and the inhibition rate of chlorothalonil was the[ Objective] The paper was to isolate the pathogen of leaf spot in Radix pseudoxtellariae, and to select the best fungicide with good antibacterial effectagainst the disease. [ Method] The pathogen was isolated from the diseased leaves, and the antibacterial activities of four fungicides including carbendazim, chlorothalonil, thiophanate-methyl and mancozeb against the pathogen were measured through mycelial growth method. [ Result ] The microscopic examination resultsshowed that the main pathogens of leaf spot in R. pseudoxtellariae were Phyllosticta commonsii and Alternaria sp.. Antibacterial results showed that four fungicidesall had apparent inhibition effect against leaf spot in R. pseztdoxtellariae, of which carbendazim had the best effect with the inhibition rate of 76.6% ; followed bythiophanate-methyl with the inhibition rate of 72.3% ; the third was mancozeb with the inhibition rate of 68.7%, and the inhibition rate of chlorothalonil was the

关 键 词：Radux pseudoxtellariae Leaf spot PATHOGEN Disease control 

分 类 号：S435.675[农业科学—农业昆虫与害虫防治]