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中国农学通报 ›› 2009, Vol. 25 ›› Issue (1): 198-202.

• 植物保护 农药 • 上一篇    下一篇

13种植物乙醇提取物对褐飞虱的生物活性研究

苏远萍,杨长举,华红霞,蔡万伦,林拥军   

  • 收稿日期:2008-11-12 修回日期:2008-11-17 出版日期:2009-01-05 发布日期:2009-01-05

Bioactivities of Ethanol Extracts from thirteen Plants against Nilaparvata lugens (Stal)

  • Received:2008-11-12 Revised:2008-11-17 Online:2009-01-05 Published:2009-01-05

摘要: 摘要:室内测定了13种植物的乙醇提取物对褐飞虱成虫的产卵忌避活性和3龄若虫的触杀活性。结果表明:水菖蒲乙醇提取物的产卵忌避作用最好,24h的产卵忌避率可达99.16%;肉豆蔻乙醇提取物次之,24h的产卵忌避率为83.40%;紫芥乙醇提取物第三,24h的产卵忌避率为71.90%。在13种植物中,花椒,石菖蒲,胡芦巴,水菖蒲和肉豆蔻5种乙醇提取物对褐飞虱若虫的触杀作用明显。在83.70μg/cm2的剂量处理下,24h后的校正死亡率均达80%以上。LD50值分别为37.95μg/cm2、41.84μg/cm2、43.71μg/cm2、46.33μg/cm2和61.48μg/cm2。

关键词: 农产品, 农产品, 质量安全, 风险分析

Abstract: Abstract: This research determined the ovipositional deterrent activity and contact toxicity of ethanol extracts from thirteen plants against Nilaparvata lugens (Stal). Results showed that after 24h treatment Acorus calamus had best ovipositional deterrent activity, as ODR was 99.16%. Myristica fragrans and Brassica juncea were second and third, as ODR were 83.40% and 71.90%. In thirteen plants extracts, Zanthoxylum bungeanum, Acorus gramineus, Trigonella Foenum –graecum, Acorus calamus and Myristica fragrans had good contact toxicity. At 83.70μg/cm2 treatment, the corrected mortality rates were more than 80% after 24h..And the values of LD50 of this four plants extracts were 37.95μg/cm2、41.84μg/cm2、43.71μg/cm2、46.33μg/cm2 and 61.48μg/cm2 respectively.

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