| 印楝提取物对瓜绢螟的生物活性 |
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| 引用本文： | 何书海,韩丙军,彭黎旭.印楝提取物对瓜绢螟的生物活性[J].农药,2007,46(2):129-131. |
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| 作者姓名： | 何书海 韩丙军 彭黎旭 |
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| 作者单位： | 1. 中国热带农业科学院,分析测试中心,海口,571101;华南热带农业大学,环植学院,海南,儋州,571737
2. 中国热带农业科学院,分析测试中心,海口,571101 |
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| 摘 要： | 在室内测定了印楝两种提取物（印楝乙酸乙酯萃取和CO2超临界萃取）对瓜绢螟的生物活性。两种提取物对瓜绢螟幼虫都具有较强的拒食作用、生长发育抑制作用，对成虫产卵忌避作用效果较好；对低龄幼虫有一定的毒杀活性，而对高龄幼虫活性很低。随着处理剂量增大，两种提取物作用效果显著增强，而同一剂量下CO2超临界萃取物活性高于乙酸乙酯萃取物。
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| 关 键 词： | 印楝提取物 瓜绢螟 生物活性 |
| 文章编号： | 1006-0413（2007）02-0129-03 |
| 修稿时间： | 2006-08-282006-11-20 |
Bioactivity of the Crude Extract from Neem Seed against Diaphania indica(Saunters) |
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| HE Shu-hai,HAN Bing-jun,PENG Li-xu.Bioactivity of the Crude Extract from Neem Seed against Diaphania indica(Saunters)[J].Pesticides,2007,46(2):129-131. |
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| Authors: | HE Shu-hai HAN Bing-jun PENG Li-xu |
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| Affiliation: | 1.Analysis and Testing Center, CATAS, Haikou 571101, China; 2.College of Environment and Plant Protection, SCUTA, Danzhou 571737, Hainan, China |
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| Abstract: | The bioactivities of two different neem extracts(neem CO2 supercritical extracts and neem ethyl acetate extracts) against Diaphania indica were investigated. Both of the two neem extracts showed strongly deterred anti- feeding, growth inhibition, larval toxicity and oviposition deterrent, and the toxicity against early larvae are better than late larvae. The bioactivities of the two extracts increased with the growing of their dosage. The neem CO2 supercritical extracts showed better bioactivity than neem ethyl acetate extracts at the same concentration. |
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| Keywords: | neem extracts Diaphania indica bioactivity |
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