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首页> 外文期刊>American Journal of Drug Discovery and Development >Molluscicidal and Mosquitocidal Activities of the Essential oils of Thymus capitatus L. and Marrubium vulgare L.
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Molluscicidal and Mosquitocidal Activities of the Essential oils of Thymus capitatus L. and Marrubium vulgare L.

机译：百里香和大榄香的香精油的杀虫和灭蚊活性。

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Molluscicidal activity of Thymus capitatus and Marrubium vulgare essential oils on adult and eggs of Biomphalaria alexandrina as well as on different stages of Culex pipiens was evaluated for their effectiveness on vector control. Steam distillation of essential oils of the flowering aerial parts of both Thymus capitatus L. and Marrubium vulgare L. yielded 0.5 and 0.2%, respectively. Results of GC/MS analyses of the two samples revealed an identified components in both oils amounted to 96.27 and 90.19% of the total oil composition for T. capitatus and M. vulgare, respectively. The two oil samples appeared dominated by the oxygenated constituents (88.22 and 57.50% for T. capitatus and M. vulgare, respectively). These were mainly composed of phenols among which carvacrol (32.98%) and thymol (32.82%) were the major constituents in T. capitatus oil while in M. vulgare oil, thymol (34.55%) was the major constituent. Borneol was present only in T. capitatus oil (9.15%). T. capitatus essential oil gave LC50 and LC90 mortality against adult snails at 200 and 400 ppm/3 h, respectively while that of M. vulgare was 50 and 100 ppm/3 h, respectively. On the other hand, M. vulgare showed LC100 ovicidal activity at 200 ppm/24 h while T. capitatus oil showed no ovicidal activity. Insecticidal activity of both two essential oils revealed LC50 and LC90 larvicidal activity at 100 and 200 ppm/12 h, respectively and LC50 and LC90 pupicidal activity at 200 and 400 ppm/12 h, respectively. Results of this study suggest that plant essential oils may have a promising role in vector control with needed continuing investigations.
机译：评估了百里香和Marrubium v​​ulgare精油对亚历山大草和成虫的成虫和卵以及在淡色库蚊的不同阶段的杀虫活性，以评估它们对媒介控制的有效性。百里香和大叶万寿菊的开花地上部分的精油的蒸汽蒸馏分别产生0.5％和0.2％。这两个样品的GC / MS分析结果表明，两种油中鉴定出的成分分别为人头参和寻常支原体的总油组成的96.27％和90.19％。两种油样似乎都被含氧成分所控制（Cap。capitatus和M. vulgare分别为88.22％和57.50％）。这些成分主要由酚组成，其中香芹酚（32.98％）和百里香酚（32.82％）是人参三丁香油的主要成分，而粗毛油中百里酚（34.55％）是主要成分。冰片仅存在于人丁香油中（9.15％）。 T. capitatus精油对成年蜗牛的LC50和LC90死亡率分别为200 ppm和400 ppm / 3 h，而普通寻常的M. vulgare的分别为50 ppm和100 ppm / 3 h。另一方面，普通小球藻在200 ppm / 24 h时表现出LC100的杀卵活性，而人头草油则没有杀卵活性。两种精油的杀虫活性分别显示100和200 ppm / 12 h的LC50和LC90杀幼虫活性，以及​​200和400 ppm / 12 h的LC50和LC90杀螨活性。这项研究的结果表明，植物精油在媒介物控制中可能有希望的作用，需要继续进行研究。

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