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Molecules 2010, 15(4), 2600-2608; doi:10.3390/molecules15042600

Chemical Composition and Insecticidal Activity against Sitophilus zeamais of the Essential Oils of Artemisia capillaris and Artemisia mongolica

1
Department of Entomology, China Agricultural University, Haidian District, Beijing 100094, China
2
College of Life Sciences, Beijing Normal University, Haidian District, Beijing 100875, China
*
Author to whom correspondence should be addressed.
Received: 18 March 2010 / Revised: 8 April 2010 / Accepted: 9 April 2010 / Published: 12 April 2010
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Abstract

In our screening program for new agrochemicals from local wild plants, Artemisia capillaris and A. mongolica were found to possess insecticidal activity against the maize weevil, Sitophilus zeamais. The essential oils of aerial parts of the two plants were obtained by hydrodistillation and were investigated by GC and GC-MS. The main components of A. capillaris essential oil were 1,8-cineole (13.75%), germacrene D (10.41%), and camphor (8.57%). The main constituents of A. mongolica essential oil were α-pinene (12.68%), germacrene D (8.36%), and γ-terpinene (8.17%). Essential oils of A. capillaris and A. mongolica possess fumigant toxicity against S. zeamais adults with LC50 values of 5.31 and 7.35 mg/L respectively. The essential oils also show contact toxicity against S. zeamais adults with LD50 values of 105.95 and 87.92 mg/adult, respectively.
Keywords: Artemisia capillaris; Artemisia mongolica; Sitophilus zeamais; fumigant; contact toxicity; essential oil Artemisia capillaris; Artemisia mongolica; Sitophilus zeamais; fumigant; contact toxicity; essential oil
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Liu, Z.L.; Chu, S.S.; Liu, Q.R. Chemical Composition and Insecticidal Activity against Sitophilus zeamais of the Essential Oils of Artemisia capillaris and Artemisia mongolica. Molecules 2010, 15, 2600-2608.

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