| 贵州省黔东南州太子参斑点病的调查及防治 |
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| 引用本文： | 张国辉,张西平,贺定翔.贵州省黔东南州太子参斑点病的调查及防治[J].安徽农业科学,2011,39(7):3993-3994,3999. |
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| 作者姓名： | 张国辉 张西平 贺定翔 |
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| 作者单位： | 1. 凯里学院环境与生命科学分院,贵州,凯里,556011
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 |
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| 基金项目： | 贵州省教育厅自然科学类科研项目 |
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| 摘 要： | 目的]分离获得太子参斑点病的致病菌,并筛选出对太子参斑点病抑菌效果较好的杀菌剂。方法]从病叶中分离得到病原菌,采用菌丝生长速率法分别测定多菌灵、百菌清、代森锰锌及甲基托布津对该病原菌的抑菌活性。结果]镜检结果表明,太子参斑点病的主要致病菌为斑点叶点霉属（Phyllosticta commonsii）和链格孢属（Alternaria sp.）。抑菌试验结果表明,4种药剂对太子参斑点病均有抑制作用,其中多菌灵效果最好,抑菌率达到76.6%;甲基托布津次之,抑菌率为72.3%;代森锰锌为68.7%;百菌清为44.7%。结论]50%多菌灵WP对太子参斑点病的抑菌效果最好。
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| 关 键 词： | 太子参 斑点病 病原菌 病害防治 |
Investigation and Prevention of Leaf Spot in Radir pseudoxtellariae in Southeast State of Guizhou Province |
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| Institution: | ZHANG Guo-hui et al(Department of Biological Science & Environment,Kaili College,Guizhou Province,Kaili,Guizhou 556011) |
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| Abstract: | Objective] The paper was to isolate the pathogen of leaf spot in Radix pseudoxtellariae,and select the best fungicide with good antibacterial effect against 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 mycelia growth method.Result] The microscopic examination results showed that the main pathogens of leaf spot in R.pseudoxtellariae were Phyllosticta commonsii and Alternaria sp.;Antibacterial results showed that four fungicides all had apparent inhibition against leaf spot in R.pseudoxtellariae,of which Carbendazim had the best effect with the inhibition rate of 76.6%;followed by Thiophanate-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 lowest as 44.7%.Conclusion] 50% Carbendazim WP had the best inhibition effect against leaf spot in R.pseudoxtellariae. |
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| Keywords: | Radix pseudoxtellariae Leaf spot Pathogen Disease control |
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