水菖蒲活性物质β-细辛醚对赤拟谷盗的熏蒸作用  

Fumigant Toxicity of β-asarone Extracted from Acorus calamus L. against Tribolium castaneum Herbst

作　　者：姚英娟[1,2] 蔡万伦[1] 杨长举[1] 张宏宇[1] 华红霞[1] 

机构地区：[1]华中农业大学城市有害生物防治研究所,武汉430070 [2]江西省农业科学院植物保护研究所,南昌330200

出　　处：《华中农业大学学报》2009年第6期690-693,共4页Journal of Huazhong Agricultural University

基　　金：国家农业部公益性行业科研专项经费项目(200803003)资助

摘　　要：为了确定水菖蒲活性成分β-细辛醚对赤拟谷盗的熏蒸效果,采用密封熏蒸方法测定了β-细辛醚对赤拟谷盗幼虫、蛹和成虫的熏蒸作用。结果表明:β-细辛醚对赤拟谷盗3种虫态均有一定的熏蒸作用,且对赤拟谷盗低龄幼虫的熏蒸效果要比高龄幼虫明显;当β-细辛醚熏蒸浓度为200μL/L时,熏蒸48 h后蛹的校正死亡率为34.32%;β-细辛醚对赤拟谷盗成虫熏蒸120 h后的LC50为116.48μL/L。The fumigant toxicity of β-asarone extracted from Acorus calamus L. against Tribolium castaneum Herbst during the immature,adult and pupal stages were studied. The results showed that β- asarone had fumigant toxicity to T. castaneum during all the three stages. The fumigant activity to the younger larva was more significant than to the older larva. After being treated for 48 hours at 200 μL/L concentration,34. 32% of the T. castaneum pupa were dead. After being treated with β-asarone for 120 hours, the LC50 for T. castaneum adult was 116.48 μL/L.

关 键 词：水菖蒲 Β-细辛醚 赤拟谷盗 熏蒸 

分 类 号：S433.5[农业科学—农业昆虫与害虫防治] S482.39[农业科学—植物保护]