| 放线菌发酵产物对烟蚜的毒力研究 |
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| 引用本文： | 廖文程,叶兰钦,邓建华,高家合,徐汉虹.放线菌发酵产物对烟蚜的毒力研究[J].安徽农业科学,2004,32(6):1191-1191,1202. |
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| 作者姓名： | 廖文程 叶兰钦 邓建华 高家合 徐汉虹 |
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| 作者单位： | 云南省烟草科学研究所,云南玉溪,653100;华南农业大学资源环境学院 |
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| 基金项目： | 云南省科技厅攻关项目
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云南省烟草公司资助项目 |
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| 摘 要： | 3个放线菌菌株 (3 1-1、3 0 -2、45 -A1)的发酵产物对烟蚜的毒力测定结果表明 :所测菌株对烟蚜均有毒力 ,施药后 2 4h ,菌株 3 1-1对烟蚜的毒力最强 ,LC50 为 0 .0 44 7mg/ml;而菌株 45 -A1毒力最弱 ,LC50 为 0 .0 92 3mg/ml。生物测定结果显示 :施药后 4h ,3个菌株的发酵产物对烟蚜的致死效果差异不显著 ,但施药后 2 4h ,菌株 3 1-1的校正死亡率达 82 .9% ,而菌株 45 -A1的校正死亡率只有 48.7%。
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| 关 键 词： | 放线菌 发酵产物 毒力 烟蚜 |
| 文章编号： | 0517-6611(2004)06-1191-01 |
Virulence of Fermentation Products of Actinomycetes against Myzus Persicae |
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| Liao Wencheng et al.Virulence of Fermentation Products of Actinomycetes against Myzus Persicae[J].Journal of Anhui Agricultural Sciences,2004,32(6):1191-1191,1202. |
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| Authors: | Liao Wencheng |
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| Abstract: | Virulence of three fermentation products of actinomycetes against the tobacco aphid (Myzus persicae) was bioassaied. These isolates were capable of infecting M.persicae. The results showed, the virulence of the isolate 31-1 was stronger than the other isolates, LC 50 (lethal concentration causing 50% mortality rate) of the isolate 31-1 to M.persicae was 0.044?7?mg/ml and LC 50 of the isolate 45-A1 was 0.092?3? mg/ml within 24 hours. In the bioassay, the mortality caused by three isolates were not obviously different after 4 hours, but the corrected mortality of the isolate 31-1 was 82.9% and the mortality of the isolate 45-A1 was only 48.7% within 24 hours after treatment. |
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| Keywords: | Actinomycete Fermentation products Virulence Myzus persicae |
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