十四烷酸对埃及伊蚊和致倦库蚊（双翅目：蚊科）的杀幼虫和驱避活性。
Larvicidal and repellent activity of tetradecanoic acid against Aedes aegypti (Linn.) and Culex quinquefasciatus (Say.) (Diptera:Culicidae).
机构信息
Division of Vector Biology, Department of Zoology, Annamalai University, Tamil Nadu, India.
出版信息
Asian Pac J Trop Med. 2011 Sep;4(9):706-10. doi: 10.1016/S1995-7645(11)60178-8.
OBJECTIVE
To investigate the larvicidal and repellent efficacy of tetradecanoic acid against Aedes aegypti (Ae. aegypti) L. and Culex quinquefasciatus (Cx. quinquefasciatus) Say (Diptera: Culicidae).
METHODS
Larvicidal efficacy of tetradecanoic acid was tested at various concentrations against the early third instar larvae of Ae. aegypti and Cx. quinquefasciatus. The repellent activity was determined against two mosquito species at three concentrations viz., 1.0,2.5 and 5.0 ppm under the laboratory conditions.
RESULTS
The tetradecanoic acid was found to be more effective against Cx. quinquefasciatus than Ae. aegypti larvae. The LC(50) values were 14.08 ppm and 25.10 ppm, respectively. Tetradecanoic acid showed lesser repellency against Ae. aegypti and Cx. quinquefasciatus. The highest repellency was observed in higher concentration of 5.0 mg/cm(2) provided 100% protection up to 60 and 90 min against Ae. aegypti and Cx. quinquefasciatus respectively.
CONCLUSIONS
From the results it can be concluded the tetradecanoic acid is a potential for controlling Cx. quinquefasciatus and Ae. aegypti mosquitoes.
目的
研究十四酸对埃及伊蚊（Aedes aegypti）和致倦库蚊（Culex quinquefasciatus）的杀幼虫和驱避效果。
方法
用不同浓度的十四酸测试其对埃及伊蚊和致倦库蚊三龄初幼虫的杀幼虫效果。在实验室条件下，用三个浓度（1.0、2.5 和 5.0 ppm）测定了对两种蚊虫的驱避活性。
结果
十四酸对致倦库蚊的效果比对埃及伊蚊幼虫更有效。LC（50）值分别为 14.08 ppm 和 25.10 ppm。十四酸对埃及伊蚊和致倦库蚊的驱避性较低。在较高浓度（5.0 mg/cm（2））下观察到最高的驱避性，分别对埃及伊蚊和致倦库蚊提供 100%的保护，达 60 和 90 分钟。
结论
从结果可以得出结论，十四酸具有控制致倦库蚊和埃及伊蚊的潜力。
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