Insecticidal activities of essential oils from leaves of Laurus nobilis L. from Tunisia, Algeria and Morocco, and comparative chemical composition
Insecticidal activities of essential oils from leaves of Laurus nobilis L. from Tunisia, Algeria and Morocco, and comparative chemical composition
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DOI：
10.1016/j.jspr.2011.10.003
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发表时间：
2012-01-01
影响因子：
2.7
通讯作者：
Khouja, Mohamed Larbi
中科院分区：
文献类型：
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作者：
Ben Jemaa, Jouda Mediouni;Tersim, Nesrine;Khouja, Mohamed Larbi
对来自突尼斯、阿尔及利亚和摩洛哥的月桂精油的化学成分进行了分析，并评估了其对两种主要储藏害虫（Rhyzopertha dominica 和赤拟谷盗）的驱避和毒性活性。这三种油的化学成分显示出数量而非质量的差异。 1,8-桉树脑、芳樟醇和异戊醛被确定为主要的常见化合物，而 α-蒎烯、α-萜品醇、丁子香基甲基醚、β-蒎烯、佛手花酚和 β-月桂烯在这三种油中也有很好的表现。结果表明，金钗精油对多米尼加红蝽和赤蝽成虫具有驱避性和毒性。驱避剂和熏蒸剂的毒性很大程度上取决于昆虫种类和油的来源。在滤纸测试中，来自摩洛哥的 L nobilis 精油比突尼斯和阿尔及利亚的油更有效。 R. dominica 的 RD50 值分别为 0.013 μ l/cm(2)、0.036 μ l/cm(2) 和 0.033 μ l/cm(2)，而 T. castaneum 的 RD50 值分别为 0.045 μ l/cm(2)、0.139 μ l/cm(2) 和 0.096 μ l/cm(2)。此外，熏蒸活性测试表明，与阿尔及利亚或突尼斯的熏蒸活性测试相比，多米尼加红花和栗花对摩洛哥的金花花精油更敏感。 R. dominica 相应的 LC50 值分别为 68、99 和 113 mu l/l 空气，而 T. castaneum 相应的 LC50 值分别为 172、194 和 mu l/l 空气。我们的工作清楚地证明了对地中海来源植物精油作为杀虫剂和驱除储存产品害虫的功效的兴趣。 (C) 2011 Elsevier Ltd. 保留所有权利。
Laurus nobilis essential oils from Tunisia, Algeria and Morocco were analyzed for their chemical composition and assessed for their repellent and toxic activities against two major stored product pests: Rhyzopertha dominica and Tribolium castaneum. The three oils showed quantitative rather than qualitative differences in their chemical compositions. 1,8-cineole, linalool and isovaleraldehyde, were identified as the major common compounds whereas, alpha-pinene, alpha-terpineol, eugenylmethylether, beta-pinene, spathulenol and beta-myrcene were also well represented in all three oils. Results showed that L nobilis essential oils were repellant and toxic to adults of R. dominica and T. castaneum. Repellent and fumigant toxicities were highly dependent upon insect species and oil origin.In filter paper tests, L nobilis essential oil from Morocco was more effective compared to Tunisian and Algerian oils. RD50 values were respectively 0.013 mu l/cm(2), 0.036 mu l/cm(2) and 0.033 mu l/cm(2) for R. dominica versus 0.045 mu l/cm(2), 0.139 mu l/cm(2) and 0.096 mu l/cm(2) for T. castaneum. Moreover, fumigant activity tests showed that both R. dominica and T castaneum were more susceptible to L nobilis essential oil from Morocco than that from Algeria or Tunisia. The corresponding LC50 values were respectively 68, 99 and 113 mu l/l air for R. dominica against 172, 194 and mu l/l air for T. castaneum. Our work clearly vindicates interest in the efficacy of essential oils from plants of Mediterranean origin both as insecticides and repellents against stored product pests. (C) 2011 Elsevier Ltd. All rights reserved.