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21种植物提取物对玉米象的生物活性
引用本文:姚英娟,薛东,杨长举.21种植物提取物对玉米象的生物活性[J].昆虫学报,2005,48(5):692-698.
作者姓名:姚英娟  薛东  杨长举
作者单位:华中农业大学城市有害生物防治研究所
基金项目:国家科技部“十五”重点科技攻关项目(2004BA523803-02)
摘    要:为了筛选对粮库安全的植物源杀虫剂,研究了21种植物的4种溶剂(无水乙醇、丙酮、乙酸乙酯和石油醚)提取物对玉米象Sitophilus zeamais Motschulsky的驱避和触杀作用。结果表明,高良姜Alpinia officinarum石油醚提取物、黄姜Curcuma longa丙酮提取物和山鸡椒Litsea cubeba石油醚提取物对玉米象成虫的驱避作用显著,处理60 h平均驱避等级均达到Ⅴ级,平均驱避率分别为80.02%、80.60%和81.70%。在21种植物中,石菖蒲Acorus gramineus和巴豆Croton tiglium的4种溶剂提取物均对玉米象成虫的触杀作用明显,7.86 mg/cm2的剂量处理4天后的校正死亡率均达到90%以上。

关 键 词:植物提取物  玉米象  驱避作用  触杀作用  
文章编号:0454-6296(2005)05-0692-07
收稿时间:10 19 2004 12:00AM
修稿时间:01 12 2005 12:00AM

Bioactivities of extracts from 21 species of plants against maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)
YAO Ying-Juan,XUE Dong,YANG Chang-Ju.Bioactivities of extracts from 21 species of plants against maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)[J].Acta Entomologica Sinica,2005,48(5):692-698.
Authors:YAO Ying-Juan  XUE Dong  YANG Chang-Ju
Affiliation:Huazhong Agricultural University
Abstract:The repellent action and contact action of the extracts of 21 species of plants to adult maize weevil, Sitophilus zeamais Motschulsky were studied. The results showed that petroleum ether extract of Alpinia officinarum, acetone extract of Curcuma longa and petroleum ether extract of Litsea cubeba had obvious repellent action to adult S. zeamais. Sixty hours after treatment, the average repellency class of the three extracts all reached class V , while their average repellency was 80.02% , 80.60% and 81.70% respectively. The extracts of Acorus gramineus and Croton tiglium all had obvious contact action to adult S. zeamais, and the corrected mortalities of the weevil were all above 90% four days after treatment in the concentration of 7.86 mg/cm^2 .
Keywords:Plant extracts  Sitophilus zeamais  repellent action  contact action
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