石菖蒲根茎提取物β-细辛醚对玉米象成虫的毒力及防治效果  

Toxicity and Control Effect of β-asarone from Acorus gramineus Soland.Against Sitophilus zeamais Mot.

作　　者：邱艳[1] 宋旭红[1] 黄衍章[1] 华红霞[1] 杨长举[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

出　　处：《华中农业大学学报》2008年第1期52-55,共4页Journal of Huazhong Agricultural University

基　　金：国家科技部"十五"重点科技攻关项目(2004BA523B03-02)资助

摘　　要：采用药膜法、滤纸药膜法和饲料拌药法分别检测β-细辛醚对玉米象成虫的触杀、驱避及种群抑制等作用。结果表明,β-细辛醚对玉米象成虫具有良好的防治效果。β-细辛醚157.30、78.63μg/cm2浓度处理玉米象成虫96 h后的校正死亡率分别高达100.00%和93.22%,处理96 h后的触杀毒力LC50为28.22μg/cm2;157.30、78.63、39.32μg/cm2浓度处理的β-细辛醚对玉米象成虫的平均驱避率在Ⅴ级以上,较低浓度19.66μg/cm2处理的驱避率也达到了Ⅳ级;0.500 g/kg的浓度处理7 d后,玉米象成虫的校正死亡率达到91.11%,处理45 d后,对子代种群抑制率也高达100.00%。The contact action,repellency effect and mixture virulence of β-asarone derived from Acorus gramineus to adult S.zeamais were studied in the lab.The result showed that β-asarone had good control effect to adult R.dominica.At 96 h post-treatment,the corrected mortality of β-asarone treated with 157.3 μg/cm^2,78.63 μg/cm^2 reached 100.00% and 93.22% respectively in contact action,and the LC50 was 28.213 9 μg/cm^2.The repellence class of 157.3,78.65,39.33,78.65 μg/cm^2 were all higher than Ⅳ.At 7 d post-treatment,the corrected mortality of βasarone treated with 0.500 g/kg was 91.11% in mixture virulence test,at 45 d post-treatment,the inhibition rate to progeny was 100.00%.

关 键 词：石菖蒲 Β-细辛醚 玉米象 触杀作用 驱避作用 

分 类 号：S482.39[农业科学—农药学]