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. 2018 Sep 19;8:14053. doi: 10.1038/s41598-018-32373-7

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Comparisons of mean percentages of repellency from the coconut fatty acids, DEET and control against bed bugs. (A,B) Bars with an asterisk indicate significant differences, P < 0.05, Student’s T-test. Repellent tests with coconut oil fatty acids (coconut FFA) and DEET for bed bugs. (C) Bed bugs chose to rest on control tents (hexane-treated) when given a choice of coconut FFA -treated tent. This effect lasted on tents treated 14d earlier. (D) Initially bed bugs chose control tents over DEET-treated tents (0d and 3d), but this effect was no longer significant at 7d and 14d. (E) At 0d bed bugs did not discriminate between DEET and NT, preferring to wander in the test arena. However from 3d to 14d after tent treatment bed bugs chose to rest on DEET-treated over NT-treated tents. Binomial statistical tests were used with the null hypothesis that bed bugs would not discriminate between the two treatments (*P < 0.05; **P < 0.0.01). N = 12, 20 bed bugs per group.