Repellency Effect of Essential Oils of Some Native Plants and Synthetic Repellents against Human Flea, Pulex irritans (Siphonaptera: Pulicidae)

  • Mohammad Bagher Ghavami Department of Medical Entomology and Vector Control, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
  • Fahimeh Poorrastgoo Department of Medical Entomology and Vector Control, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
  • Behrooz Taghiloo Zanjan Health Center, Zanjan University of Medical Sciences, Zanjan, Iran
  • Jamshid Mohammadi Department of Medical Entomology and Vector Control, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
Pulex irritans, Ziziphora tenuiore, Myrtus communis, DEET, Repellents


Background: Fleas are important vectors of human and animal disease, and control measures for protection against their bites and flea-borne diseases are necessary.Methods: The essential oils (EOs) of four native medicinal plants, Ziziphora tenuiore, Myrtus communis, Achillea wilhelmsii and Mentha piperita were isolated by hydrodistillation technique and analyzed by GC-MC. The repellent activity of EOs and synthetic compounds, DEET and permethrin, were assayed on human subjects against field col­lected fleas. The effective doses of 50% and 90% of EOs and synthetic compounds were estimated by probit analysis of dose and response regression line.Results: Analysis of EOs revealed about 19 major components. All oils were found to be more repellent (ED50 range= 208–955µg cm-2) than DEET and permethrin (ED50 range= 27–182 x 103 µg cm-2). Thyme and myrtle oils showed high repellent activities and among the total detected terpenes, thymol (36.26%) and α- pinene (32.5%) were the major components of those oils respectively.Conclusion: Low repellent potency of DEET and permethrin against fleas might be related to flea olfactory system and further molecular and electrophysiological studies are required to conceive new ideas for the discovery and de­velopment of the next generation of repellents. Based on high repellent activity of thyme and myrtle essential oils against Pulex irritans further studies should be staged to develop their appropriate effective formulations. Likewise, field trials should be carried out to evaluate the operational feasibility and dermal toxicity over a long period.


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How to Cite
Ghavami MB, Poorrastgoo F, Taghiloo B, Mohammadi J. Repellency Effect of Essential Oils of Some Native Plants and Synthetic Repellents against Human Flea, Pulex irritans (Siphonaptera: Pulicidae). J Arthropod Borne Dis. 11(1):105-115.
Original Article