Publication: Comparative repellency of 38 essential oils against mosquito bites
9
Issued Date
2005-04-01
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ISSN
0951418X
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2-s2.0-23244443968
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Mahidol University
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SCOPUS
Bibliographic Citation
Phytotherapy Research. Vol.19, No.4 (2005), 303-309
Suggested Citation
Yuwadee Trongtokit, Yupha Rongsriyam, Narumon Komalamisra, Chamnarn Apiwathnasorn Comparative repellency of 38 essential oils against mosquito bites. Phytotherapy Research. Vol.19, No.4 (2005), 303-309. doi:10.1002/ptr.1637 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/17167
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Title
Comparative repellency of 38 essential oils against mosquito bites
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Abstract
The mosquito repellent activity of 38 essential oils from plants at three concentrations was screened against the mosquito Aedes aegypti under laboratory conditions using human subjects. On a volunteer's forearm, 0.1 mL of oil was applied per 30 cm2of exposed skin. When the tested oils were applied at a 10% or 50% concentration, none of them prevented mosquito bites for as long as 2 h, but the undiluted oils of Cymbopogon nardus (citronella), Pogostemon cablin (patchuli), Syzygium aromaticum (clove) and Zanthoxylum limonella (Thai name: makaen) were the most effective and provided 2 h of complete repellency. From these initial results, three concentrations (10%, 50% and undiluted) of citronella, patchouli, clove and makaen were selected for repellency tests against Culex quinquefasciatus and Anopheles dirus. As expected, the undiluted oil showed the highest protection in each case. Clove oil gave the longest duration of 100% repellency (2-4 h) against all three species of mosquito. Copyright © 2005 John Wiley & Sons, Ltd.