| 聂亚锋;陈志谊;刘永锋;罗楚平;刘邮洲.假隔链格孢(Nimbya alternantherae)SF-193防除空心莲子草田间高效使用技术研究[J].植物保护,2008,34(3):109-113. |
| 假隔链格孢(Nimbya alternantherae)SF-193防除空心莲子草田间高效使用技术研究 |
| High-efficiency application technology with the fungus Nimbya alternantherae SF-193 against Alternanthera philoxeroides in the field |
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| DOI： |
| 中文关键词: 假隔链格孢SF-193 空心莲子草 生物防治技术 |
| 英文关键词:Nimbya alternantherae Alternanthera philoxeroides bio-control technology |
| 基金项目: |
| 聂亚锋;陈志谊;刘永锋;罗楚平;刘邮洲 |
| 江苏省农业科学院植物保护研究所,南京 210014 |
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| 中文摘要: |
| 假隔链格孢(Nimbya alternantherae)SF-193是空心莲子草的强致病菌,能引起空心莲子草快速发病,有效地抑制空心莲子草生长。本文通过田间试验研究了生防真菌SF-193在田间的高效使用技术,结果表明,SF-193在田间防除空心莲子草的最适合浓度配比为1∶5~1∶10;3种喷雾器喷施SF-193对空心莲子草致病力无显著性差异;SF-193对新叶龄的防除效果好于对老叶龄的防除效果;与化学除草剂草甘膦、氯氟吡氧乙酸相比,SF-193原液7 d后对空心莲子草的鲜重防效高于氯氟吡氧乙酸,但与草甘膦的防效没有显著性差异。 |
| 英文摘要: |
| Nimbya alternantherae SF-193 is a strong phytopathogenic fungus that could cause foliar and stem necrosis of Alternanthera philoxeroides and inhibit the growth of the weed in the field.The high-efficiency application technology of the fungus,as a bio-control agent,against A.philoxeroides was studied.The optimal range of concentration for control of the weed in the field was 1∶5-1∶10 dilution times.The pathogenicity of the fungal agent to the weed was no difference between three different sprayers.After spraying,the control efficacy on new leaves was higher than that on old leaves.Compared with two herbicides,the efficacy of the fungal agents against the weed was higher than that of fluroxypyr,but no obvious difference was observed with glyphosate 7 days after the spray. |
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