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Molecules 2010, 15(8), 5831-5839; doi:10.3390/molecules15085831
Article

Chemical Composition and Toxicity against Sitophilus zeamais and Tribolium castaneum of the Essential Oil of Murraya exotica Aerial Parts

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Received: 10 June 2010; in revised form: 17 August 2010 / Accepted: 19 August 2010 / Published: 25 August 2010
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Abstract: 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.
Keywords: Murraya exotica; Sitophilus zeamais; Tribolium castaneum; fumigant; contact toxicity; essential oil Murraya exotica; Sitophilus zeamais; Tribolium castaneum; fumigant; contact toxicity; essential oil
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Li, W.Q.; Jiang, C.H.; Chu, S.S.; Zuo, M.X.; Liu, Z.L. Chemical Composition and Toxicity against Sitophilus zeamais and Tribolium castaneum of the Essential Oil of Murraya exotica Aerial Parts. Molecules 2010, 15, 5831-5839.

AMA Style

Li WQ, Jiang CH, Chu SS, Zuo MX, Liu ZL. Chemical Composition and Toxicity against Sitophilus zeamais and Tribolium castaneum of the Essential Oil of Murraya exotica Aerial Parts. Molecules. 2010; 15(8):5831-5839.

Chicago/Turabian Style

Li, Wei Qing; Jiang, Cai Hong; Chu, Sha Sha; Zuo, Ming Xue; Liu, Zhi Long. 2010. "Chemical Composition and Toxicity against Sitophilus zeamais and Tribolium castaneum of the Essential Oil of Murraya exotica Aerial Parts." Molecules 15, no. 8: 5831-5839.



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