Larvicidal effects of various essential oils against Aedes, Anopheles, and Culex larvae (Diptera, Culicidae)
Larvicidal effects of various essential oils against Aedes, Anopheles, and Culex larvae (Diptera, Culicidae)
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DOI：
10.1007/s00436-006-0182-3
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发表时间：
2006-09-01
影响因子：
2
通讯作者：
Mehlhorn, Heinz
中科院分区：
文献类型：
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作者：
Amer, Abdelkrim;Mehlhorn, Heinz
幼虫期的蚊子是杀虫剂的目标，因为蚊子在水中繁殖，因此很容易在这个栖息地处理它们。然而，在水源中使用常规杀虫剂会给人类和/或环境带来许多风险。天然农药，特别是从植物中提取的农药在这方面更有发展前景。芳香植物及其精油是许多化合物的重要来源，这些化合物在不同方面都有应用。本研究对41种植物精油对埃及伊蚊、斯氏按蚊和致倦库蚊3龄幼虫的杀灭效果进行了评价。首先，使用50 ppm的溶液对这些油进行了埃及伊蚊的调查。来自41种植物的13种精油（樟脑、百里香、amyris、柠檬、雪松、乳香、莳萝、桃金娘、杜松、黑胡椒、马尾草、蜡菊和檀香）在24小时后甚至更短的时间内导致100%的死亡率。分别以1、10、50、100和500ppm的浓度对3种蚊龄幼虫进行了最佳精油试验。这些精油对埃及伊蚊的致死浓度50值为1 - 101.3 ppm，对斯氏伊蚊的致死浓度50值为9.7 - 101.4 ppm，对致倦库蚊的致死浓度50值为1 - 50.2 ppm。
Mosquitoes in the larval stage are attractive targets for pesticides because mosquitoes breed in water, and thus, it is easy to deal with them in this habitat. The use of conventional pesticides in the water sources, however, introduces many risks to people and/or the environment. Natural pesticides, especially those derived from plants, are more promising in this aspect. Aromatic plants and their essential oils are very important sources of many compounds that are used in different respects. In this study, the oils of 41 plants were evaluated for their effects against third-instar larvae of Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus. At first, the oils were surveyed against A. aegypti using a 50-ppm solution. Thirteen oils from 41 plants (camphor, thyme, amyris, lemon, cedarwood, frankincense, dill, myrtle, juniper, black pepper, verbena, helichrysum and sandalwood) induced 100% mortality after 24 h, or even after shorter periods. The best oils were tested against third-instar larvae of the three mosquito species in concentrations of 1, 10, 50, 100 and 500 ppm. The lethal concentration 50 values of these oils ranged between I and 101.3 ppm against A. aegypti, between 9.7 and 101.4 ppm for A. stephensi and between I and 50.2 ppm for C quinquefasciatus.