摘要
采用药膜法和滤纸药膜选择法,分别研究了20种药用植物乙醇提取物对谷蠹Rhizopertha dominica(Fab.)成虫的触杀和驱避活性。结果表明:触杀效果以葫芦巴Trigonelia foenum-graecum提取物的活性最强,蛇床子Cnidiummonnieri和石菖蒲Acorus gramineus提取物次之。葫芦巴提取物0.39mg/cm2浓度处理48h后对谷蠹的触杀死亡率为100%,处理72h后对谷蠹的LD50为19.94μg/cm2。蛇床子和乌头Aconitum carmichaeli提取物对谷蠹成虫具有显著的驱避活性。蛇床子提取物同时具有较好的触杀和驱避活性。
In this paper we reported the bioactivities of ethanol extracts from 20 medicinal plants against Rhizopertha dominica （Fab.） using drug-film method and filter paper diffusion method. The results of the contact tests showed that the extract of Trigonelia foenum-graecum was most effective on the pest, followed by Cnidium monnieri and Acorus gramineus respectively. At 0.39 mg/cm^2 treatment, T. foenum-graecum extract showed 100% mortality at 48 h post-treatment. C. monnieri and Aconitum carmichaeli had marked repellence effect against R. dominica. C. monnieri extract had better contact and repellence efficacy. The LD50 of T. foenum-graecum plant extract against R. dorainica after 72 h treatment was 19.94 ug/cm^2 .
出处
《昆虫学报》
CAS
CSCD
北大核心
2007年第2期118-124,共7页
Acta Entomologica Sinica
基金
:国家科技部"十五"重点科技攻关项目(2004BA523B03-02)
关键词
植物提取物
触杀
驱避
谷蠢
葫芦巴
Plant extract
contact toxicity
repellency
Rhizopertha dominica （Fab.）
Trigonelia foenum-graecum
