| 周小慧,闫朝廷,胡春海,潘薛波.雷公藤乙醇提取物对乌桕毒蛾幼虫的毒力测定[J].南华大学学报(自然科学版),2005,(4):32~35.[.Toxicity Determination of the crude ethanol extract from Tripterygium wilfordii on Euproctis bipunctapex Larva[J].Journal of University of South China(Science and Technology),2005,(4):32~35.] |
| 雷公藤乙醇提取物对乌桕毒蛾幼虫的毒力测定 |
| Toxicity Determination of the crude ethanol extract from Tripterygium wilfordii on Euproctis bipunctapex Larva |
| 修订日期：2005-11-09 |
| DOI： |
| 中文关键词: 雷公藤 乌桕毒蛾 生物农药 毒杀作用 乙醇提取物 毒蛾 乌桕 毒力测定 幼虫 生长发育抑制作用 |
| 英文关键词:Tripterygium wilfordii,Euproctis bipunctapex,biological pesticides,toxic killing effect |
| 基金项目: |
| 周小慧 闫朝廷 胡春海 潘薛波 |
| 中南林学院生命科学与技术学院,湖南长沙410004 |
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| 中文摘要: |
| 生物农药大有发展前途，研究雷公藤乙醇提取物对乌桕毒蛾的生物活性，结果表明，雷公藤提取物对4龄乌桕毒蛾幼虫具有很强的生长发育抑制作用，其抑制中浓度EC50为0．02201％。雷公藤提取物对乌桕毒蛾幼虫具有较高的毒杀作用，但表现比较缓慢，处理72h后的死亡中浓度LC50为0．03227％。 |
| 英文摘要: |
| Biological pesticides was to be having a bright prospect.The paper dealted with effect of ethanol extract from the root bark of Tripterygium wilfordii on bioactivities of diamond-back moth,Euproctis bipunctapex.The results showed that the medium growth inhibiting concentration(EC_(50)) of the extract against 4th instar larvae was 0.02201%.The extract had higher toxic killing effect on Euproctis bipunctapex larvae.However,the effect was lower.The median lethal concentration(LC_(50)) for the larvae treated for 72 h was(0.03227%). |
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