Document Type : Original Article
Authors
1
Associate Professor, Department of Medical Entomology and Vector Control, Faculty of Health &Infectious and Tropical Diseases Center,Hormozgan University of Medical Sciences, Bandar Abbas, Iran
2
Assistant Professor, Department of Medical Entomology and Vector Control, School of Health, Kerman University of Medical Sciences, Kerman, Iran
3
Research Assistant, Faculty of Health, Semnan University of Medical Sciences, Semnan, Iran
4
Assistant Professor, Department of Health Services and Health Promotion, School of Health& Molecular Medicine Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
5
Postgraduate student, Department of Medical Parasitology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
6
Postgraduate student, Department of Medical Entomology and Vector Control, Faculty of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
7
AssistantProfessor, Department of Medical Entomology and Vector Control, Faculty of Health& Infectious and Tropical Diseases Research Center,Hormozgan University of Medical Sciences, Bandar Abbas, Iran
Abstract
Background: Mosquitoes are responsible for the transmission of many pathogens and parasites and consequently serious diseases in humans. Currently, application of plant derivatives has been suggested as an alternative bio-control technique for these medically important vectors.
Methods: In this study the essential oil and methanol extract of Achilleawilhelmsii were tested against late-3rd or young-4th instar larvae stages of mosquito vector,Anopheles stephensi, under laboratory condition. The larval mortality was calculated after 24 h of the exposure period. Data were subjected to Probit analysis in order to estimate the lethal concentration for 50% and 90% of mortality values.
Results: Results showed that the essential oil induced 100% larval mortality of An. stephensilarvae after 24 h with a dosage of 160 ppm, However, a dosage of 320 ppm of methanol extract was required to reach 100% larval mortality.Theessential oil methanol extract exerted significant larvicidal activity with LC50 values of 39.04 and 115.73 ppm, respectively.
Conclusion: Our finding suggests that A. wilhelmsii oil is a potential source and has valuable larvicidal compounds for mosquito larval control.
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