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八种药用植物精油对谷蠹成虫的熏蒸活性
黄衍章,李世广,操海群,巢道平,周倩
0
(安徽农业大学植物保护学院,合肥 230036)
摘要:
采用三角瓶密闭熏蒸法,测试了8种药用植物精油在空仓和实仓模拟条件下对谷蠹成虫的熏蒸活性。结果表明,8种植物精油以八角茴香,小茴香和石菖蒲对试虫的熏杀效果较好,尤以八角茴香精油的熏杀效果最佳。空仓模拟条件下,八角茴香和小茴香精油均对谷蠹成虫表现出很高的熏杀活性,其熏蒸处理3 d后的LC50分别为2.88 μL·L-1和4.02 μL·L-1。实仓模拟条件下, 8种植物精油仅以八角茴香的熏蒸效果较好, 其166.67 μL·L-1熏蒸处理10 d后试虫的校正死亡率为92.37%,实仓模拟熏蒸处理14 d后的LC50为67.01 μL·L-1
关键词:  植物精油  谷蠹  熏蒸活性  八角茴香
DOI:CNKI:34-1162/S.20111025.1027.012
投稿时间:2011-01-06
基金项目:安徽农业大学校长青年基金资助。
Fumigant activities of eight essential oils of herb plants against Rhizopertha dominica (Fab.) adults
HUANG Yan-zhang,LI Shi-guang,CAO Hai-qun,CHAO Dao-ping,ZHOU Qian
(School of Plant Protection, Anhui Agricultural University, Hefei 230036)
Abstract:
The fumigant activities of eight essential oils of herb plants against adults of Rhizopertha dominica (Fab.) were tested in the sealed triangular flask. The result indicated that Illicium verum, Foeniculum vulgare and Acorus gramineus oils were possessed of good fumigant activities against the tested pests, especially the Illicium verum oils. Under the condition of empty-storehouse-imitation, the Illicium verum and Foeniculum vulgare oils showed excellent fumigant activities against the tested pests, and the LC50 to R. dominica (Fab.) after treatment for 3 days were 2.88 μL·L-1 and 4.02 μL·L-1, respectively. Of all eight herb plants essential oils, only Illicium verum showed good fumigant activities under the condition of real-storehouse-imitation, and the oil produced 92.37% corrected mortalities of pests at 166.67 μL·L-1 after treatment for 10 days. Further bioassay showed the LC50 of Illicium verum oil against R. dominica (Fab.) after treatment for 14 days under the condition of real-storehouse-imitation was 67.01 μL·L-1.
Key words:  plant essential oils  Rhizopertha dominica (Fab.)  fumigant activity  Illicium verum

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