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1 July 2010 Is Soybean Oil an Effective Repellent Against Aedes aegypti?
Cory Campbell, Gerhard Gries
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Abstract

Soybean oil (SO) is considered an active ingredient in commercial BiteBlocker™ insect-repellent products. Our objective was to test mechanisms by which SO exhibits repellency, using the yellow fever mosquito, Aedes aegypti (L.) (Diptera: Culicidae), as a representative blood-feeding insect. In dual-port glass-cage olfactometers, human hands treated with SO at various concentrations attracted as many mosquitoes as did untreated hands, indicating that SO has no long-range repellent effect. In contrast, hands treated with N, N-diethyl-3-methylbenzamide (DEET) attracted significantly fewer mosquitoes than did untreated control hands. In cage experiments, treating an area of a human forearm exposed to A. aegypti with SO provided no protection against bites, whereas treating it with DEET did. These results indicate that SO has no short-range or contact repellent properties. Both DEET and the BiteBlocker™ product conferred protection for periods similar to those previously reported. Based on our data, classification of SO as an active mosquito repellent should be reconsidered.

© 2010 Entomological Society of Canada
Cory Campbell and Gerhard Gries "Is Soybean Oil an Effective Repellent Against Aedes aegypti?," The Canadian Entomologist 142(4), 405-414, (1 July 2010). https://doi.org/10.4039/n10-032
Received: 28 January 2010; Accepted: 26 March 2010; Published: 1 July 2010
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