Molecules | |
Chemical Composition and Toxicity against Sitophilus zeamais and Tribolium castaneum of the Essential Oil of Murraya exotica Aerial Parts | |
Wei Qing Li1  Cai Hong Jiang1  Sha Sha Chu1  Ming Xue Zuo1  | |
[1] 1College of Life Sciences, Beijing Normal University, Haidian District, Beijing 100875, China 2College of Chemical and Biological Engineering, Changsha University of Science and Technology, Changsha 41004, China 3Department of Entomology, China Agricultural University, Haidian District, Beijing 100094, China | |
关键词: Murraya exotica; Sitophilus zeamais; Tribolium castaneum; fumigant; contact toxicity; essential oil; | |
DOI : 10.3390/molecules15085831 | |
来源: mdpi | |
【 摘 要 】
In our screening program for new agrochemicals from Chinese medicinal herbs, Murraya exotica was found to possess insecticidal activity against the maize weevil, Sitophilus zeamais and red flour beetle, Tribolium castaneum. The essential oil of aerial parts of M. exotica was obtained by hydrodistillation and investigated by GC and GC-MS. The main components of M. exotica essential oil were spathulenol (17.7%), a-pinene (13.3%), caryophyllene oxide (8.6%), and a-caryophyllene (7.3%). Essential oil of M. exotica possessed fumigant toxicity against S. zeamais and T. castaneum adults with LC50 values of 8.29 and 6.84 mg/L, respectively. The essential oils also show contact toxicity against S. zeamais and T. castaneum adults with LD50 values of 11.41 and 20.94 mg/adult, respectively.
【 授权许可】
CC BY
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
【 预 览 】
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