| 半夏和苦楝汁液对菜青虫杀虫活性的研究初报 |
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| 引用本文： | 刘国庆.半夏和苦楝汁液对菜青虫杀虫活性的研究初报[J].中国植保导刊,2004,24(4):7-8. |
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| 作者姓名： | 刘国庆 |
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| 作者单位： | 西华师范大学生物系,四川,南充,637002 |
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| 摘 要： | 用三龄菜青虫对半夏块茎和苦楝叶、果的汁液进行了室内杀虫活性的测定。结果表明,半夏对菜青虫的胃毒作用较强,72h的校正死亡率达75.8%,而触杀作用为38.6%;室内防治效果也较高,校正死亡率可达82.3%。表明半夏具有开发应用的潜力。
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| 关 键 词： | 半夏 苦楝 杀虫活性 菜青虫 |
| 文章编号： | 1672-6820(2004)04-0007-02 |
| 修稿时间： | 2003年11月20 |
Insecticidal activity of Pinellia ternata and Melia azedarach juice against Pieris rapae |
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| LIU Guo-qing.Insecticidal activity of Pinellia ternata and Melia azedarach juice against Pieris rapae[J].China Plant Protection,2004,24(4):7-8. |
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| Authors: | LIU Guo-qing |
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| Abstract: | s:The insecticidal activity of the jui ce of Pinellia ternata stem tubers and Melia azedarach leaves and fruits against third-instar larvae of Pieris rapae was tested in the laboratory.The results showed that the stomach toxicit y of Pinellia ternata against Pieris rapae was h igh,the rectified mortality after 72hours reached 75.8%,while the conta ct toxicity was 38.6%;and the control effect was also high,the adjusted m ortality reached 82.3%.The results indicated that Pinellia ternata have co mmereial potentials. |
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| Keywords: | Pinellia ternata Melia azedarach insecticidal activities Pieris rapae |
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