Abstract
A laboratory study was carried out to evaluate the repellent efficacy of a methanol-leaf extract of Ethiopian traditionally used insect repellent plant viz., Lomi sar [vernacular name (local native language, Amharic); Cymbopogon citratus (DC) Stapf. (Poaceae)] against Anopheles arabiensis at four different concentrations viz., 1.0, 1.5, 2.0, and 2.5 mg/cm2. The percentage protection in relation to the dose method was performed. C. citratus extract has shown various degrees of repellency impact against A. arabiensis. It provided the maximum total percentage protection of 78.83% at 2.5 mg/cm2 and followed 68.06% at 2.0 mg/cm2 for 12 h. All four tested concentrations of C. citratus extract offered significant protection and Student's t test results shows statistically significant (p value = 0.001) [1.0 mg/cm2 (t = 22.89; df = 4); 1.5 mg/cm2 (t = 24.03; df = 4); 2.0 mg/cm2 (t = 36.92; df = 4); 2.5 mg/cm2 (t = 22.31; df = 4)] difference between treated and control groups. The result suggests that it could serve as a potent insect repellent against vectors of disease. Globally, C. citratus is renowned for its therapeutic values. Above and beyond, due to its user- as well as environmental-friendly nature, it should be promoted among the marginalized populations in order to reduce man-vector contact. In addition, this appropriate strategy affords the opportunity to minimize chemical repellent usage and the risks associated with adverse side effects. At the end of the day, traditionally used plant-based insect repellents could be viable safer alternative sources for chemical insect repellents.
Similar content being viewed by others
References
Amer A, Mehlhorn H (2006) Repellency effect of forty-one essential oils against Aedes, Anopheles, and Culex mosquitoes. Parasitol Res 99(4):478–490
Brower J, Chalk P (2003) The global threat of new and re-emerging infectious diseases: Reconciling U.S. National Security and Public Health Policy. RAND Report MR-1602-RC. http://rand.org/publications/MR/MR1602. Accessed on 24th May 2009
Central Statistical Agency (CSA). The Ethiopian Demographic and Health Survey 2005. Central Statistical Agency, Addis Ababa, Ethiopia, 2006
Changonda LS, Makanda C, Claude JC (2000) J Essential Oil Res 12:78–480
Christophers SR (1947) Mosquito repellents: being a report of the work of the mosquito repellent inquiry, Cambridge 1943–1945. J Hyg 45:176–231
Clayton WD (1968) Gramineae. In Flora of West Africa: Trop Afr 3(2):349–512
Clem JR, Havemann DF, Raebel MA (1993) Insect repellent deet (N,N-diethyl-m-toluamide) cardiovascular toxicity in an adult. Ann Pharmacother 27:289–293
Gabel ML, Spencer IS, Akers WA (1976) Evaporation rates and protection times of repellents. Mosq News 36:141–146
Garson LR, Winnike ME (1968) Relationships between insect repellency and chemical and physical parameters: a review. J Med Entomol 5:339–352
Govere J, Durrheim DN, Du Toit N, Hunt RH, Coetzee M (2000) Local plants as repellents against Anopheles arabiensis, in Mpumalanga Province, South Africa. Cent Afr J Med 46:213–216
Guenier V, Hochberg M, Gue’gan JF (2004) Ecology drives the worldwide distribution of human diseases. PLoS Biol 2:740–746
Karunamoorthi K, Bekele M (2009) Prevalence of malaria from peripheral blood smears examination: a 1-year retrospective study from the Serbo Health Center, Kersa Woreda, Ethiopia. J Infect Pub Health 2(4):171–176
Karunamoorthi K, Ilango K (2010) Larvicidal activity of Cymbopogon citratus (DC) Stapf. and Croton macrostachyus Del. against Anopheles arabiensis Patton (Diptera: Culicidae), the principal malaria vector. Eur Rev Med Pharmacol Sci 14(1):57–62
Karunamoorthi K, Sabesan S (2009) Field trials on the efficacy of DEET-impregnated anklets, wristbands, shoulder, and pocket strips against mosquito vectors of disease. Parasitol Res 105(3):641–645
Karunamoorthi K, Mulelam A, Wassie F (2008a) Laboratory evaluation of traditional insect/mosquito repellent plants against Anopheles arabiensis, the predominant malaria vector in Ethiopia. Parasitol Res 103(3):529–534
Karunamoorthi K, Ramanujam S, Rathinasamy R (2008b) Evaluation of leaf extracts of Vitex negundo L. (Family: Verbenaceae) against larvae of Culex tritaeniorhynchus and repellent activity on adult vector mosquitoes. Parasitol Res 103(3):545–550
Karunamoorthi K, Ilango K, Endale A (2009) Ethnobotanical survey of knowledge and usage custom of traditional insect/mosquito repellent plants among the Ethiopian Oromo ethnic group. J Ethnopharmacol 125(2):224–229, Sept 7
Khans AA, Maibach HI, Skidmore DL (1972) A study of insect repellents the effect of temperature on protection time. J Econ Entomol 66:437–438
Lambert PH. Malaria: past and present. http://nobelprize.org/medicine/educational/malaria; 2005 [accessed on April 24, 2009]
Lorenzetti BB, Souza GEP, Sarti SJ, Filho DS, Ferreira SH (1991) Myrcene mimics the peripheral analgesic activity of lemongrass tea. J Ethnopharmacol 34:43–48
Mishra AK, Dubey NK (1994) Evaluation of some essential oils for their toxicity against fungi causing deterioration of stored food commodities. Appl Environ Microbiol 60:1101–1105
Moody RP, Benoit FM, Riedel R, Ritter L (1989) Dermal absorption of the insect repellent deet (N, N-diethyl-m-toluamide) in rats and monkeys; effect of anatomical site and multiple exposure. J Toxicol Environ Health 26:137–147
Moore SJ, Lenglet A, Hill N (2002) Field evaluation of three plant-based insect repellents against malaria vectors in Vaca Diez Province, the Bolivian Amazon. J Am Mosq Control Assoc 18:107–110
Moore SJ, Hill N, Ruiz C, Cameron MM (2007) Field evaluation of traditionally used plant-based insect repellents and fumigants against the malaria vector Anopheles darlingi in Riberalta, Bolivian Amazon. J Med Entomol 44(4):624–630
Negrelle RRB, Gomes EC (2007) Cymbopogon citratus (DC.) Stapf: chemical composition and biological activities. Rev Brasil Plant Med 9:80–92
Onawunmi GO, Yisak WA, Ogunlana EO (1984) Antibacterial constituents in the essential oil of Cymbopogon citratus (DC.) Stapf. J Ethnopharmacol 12:279–286
Pattnaik S, Subramanyam VR, Kole CR, Sahoo S (1995) Antibacterial activity of essential oils from Cymbopogon: inter and intra-specific differences. Microbios 84:239–245
Plant Resources of South-East Asia No 19. 1998
Pushpanathan T, Jebanesan A, Govindarajan M (2006) Larvicidal, ovicidal and repellent activities of Cymbopogan citratus Stapf (Graminae) essential oil against the filarial mosquito Culex quinquefasciatus (Say) (Diptera: Culicidae). Trop Biomed 23(2):208–212
Reiter P (2008) Global warming and malaria: knowing the horse before hitching the cart. Mal J 11(7 Suppl 1):S3
Rueda LM, Rutledge LC, Gupta RK (1998) Effect of skin abrasions on the efficacy of the repellent deet against Aedes aegypti. J Am Mosq Control Assoc 14:178–182
Santiwitchaya O, Punnakunta L, Sinchaisri P, Thavara U (2005) Efficacy of volatile oils derived from Cymbopogon citratus, Cymbopogon nardus and Litsea cubeba against mosquitoes. Presented in the fourth International Conference on Biopesticides Feb 13–18, 2005, Chiang Mai, Thailand
Seyoum A, Palsson K, Kunga S, Kabiru EW, Lwande W, Killeen GF, Hassanali A, Knols BGJ (2002) Traditional use of mosquito repellent plants in western Kenya and their evaluation in semi-field experimental huts against Anopheles gambiae: ethnobotanical studies and application by thermal expulsion and direct burning. Trans R Soc Trop Med Hygiene 96:225–231
Sharp L, Brian DL (1991) Behavioural variation of Anopheles arabiensis (Diptera: Culicidae) populations in Natal, South Africa. Bull Entomol Res 81:107–110
Snow RW, Guerra CA, Noor AM, Myint HY, Hay SI (2005) The global distribution of clinical episodes of Plasmodium falciparum malaria. Nature 434:214–217
Tawatsin A, Wratten ST, Scott RR, Thavara U, Techadamrongsin T (2001) Repellency of volatile oils from plants against three mosquitoes. J Vector Ecol 6:76–82
Trigg JK (1996) Evaluation of a eucalyptus-based repellent against Anopheles spp. in Tanzania. J Am Mosq Control Assoc 12:243–246
Venkatachalam MR, Jebanesan A (2001) Repellent activity of Ferronia elephantum Corr. (Rutaceae) leaf extracts against Aedes aegypti. Bioresour Technol 76:287–288
Vogel AI (1978) Text book of practical organic chemistry. The English Language Book Society and Longman, London, p 1368
Waka M, Hopkins RJ, Curtis C (2004) Ethnobotanical survey and testing of plants traditionally used against hematophagous insects in Eritrea. J Ethnopharmacol 95(1):95–101
WHO (1996) Report of the WHO Informal Consultation on the Evaluation and Testing of Insecticides, CTD/WHOPES/IC/96.1, p.69
Wood PV (1968) The effect of ambient humidity on the repellency of ethylhexanediol to Aedes aegypti. Can Entomol 100:1331–1334
Zhu J, Zeng X, Yanma LT, Qian K, Han Y, Xue S, Tucker B, Schultz G, Coats J, Rowley W, Zhang A (2006) Adult repellency and larvicidal activity of five plant essential oils against mosquitoes. J Am Mosq Control Assoc 22(3):515–522
Acknowledgement
We are greatly indebted to Professor Dr. K. Sasikala, M.Sc., Ph.D., M.A.F.R.C, the Head, Department of Zoology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India, for her constant encouragement throughout my studies. The authors sincerely thank Ms. Mihiret, Mr. Admasu, and Mr. Abebe for their valuable contributions for the identification and collection of Ethiopian traditional medicinal plants. Our last but not least heartfelt thanks go to our colleagues from the School of Environmental Health Science, Faculty of Public Health, Jimma University, Jimma, Ethiopia, for their kind support and cooperation.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Karunamoorthi, K., Ilango, K. & Murugan, K. Laboratory evaluation of traditionally used plant-based insect repellent against the malaria vector Anopheles arabiensis Patton (Diptera: Culicidae). Parasitol Res 106, 1217–1223 (2010). https://doi.org/10.1007/s00436-010-1797-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00436-010-1797-y