Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2006.885.892Anopheles stephensi in the Malarious Areas of Iran, 2004-2005]]>DavariB. H. Vatandoost H. Ladonni M. Shaeghi M.A. Oshaghi H.R.Basseri A.A. Enayati Y. Rassi M.R. Abai A.A. Hanfi Bojd K. Akbarzadeh 5200695Using of insecticides depend largely on the knowledge of the susceptibility levels of malaria vectors to these chemical. In this study, the susceptibility levels of Anopheles stephensi to DDT 4%, dieldrin 0.4%, fipronil 1%, deltamethrin 0.05%, permethrin 0.75%, lambdacyhalothrin 0.05% and cyfluthrin 0.15% were determined according to WHO methods in three endemic malarious regions; Sistan and Baluchistan, Hormozgan and Fars provinces. The LT50 values of different insecticides were calculated using the probit regression line for each strain. The results showed that An. stephensi is resistant to DDT, dieldrin and fipronil in all regions; however Bandar Abbas strain showed the highest level of resistance to these three insecticides. All the tested strains were sensitive against four pyrethroid insecticides. The LT50 of Bandar Abbas strain against cyfluthrin and deltamethrin with 5.46 and 3.22 min were the highest and the lowest values respectively. The highest and the lowest mortality rates of the Kazeroon strain of An. stephensi were against lambdacyhalothrin and permethrin with 6.80 and 0.682 min, respectively. In Iranshahr region, the figures for deltamethrin, permethrin, lambdacyhalothrin and cyfluthrin were 3.50, 5.10, 3.95 and 5.38 min, respectively. The results of the study suggested a possible cross-resistance between dieldrin and fipronil. Regarding the sensitivity of An. stephensi to different pyrethroids in the malarious regions of Iran, using pyrethroids is still suggested. Performing complementary tests with cyfluthrin on Bandar Abbas strain and with permethrin on Iranshahr strain seems to be necessary.]]>Abbot, W.S.,192518265267Bansal, S.K and K.V. Singh,19963316Das, M., P. Srivastava, S. Khamre and L.B. Deshpande,1986Anopheles culicifacies population to deltamethrin.]]>2553555Davidson, G.,195818579621Davidson, G. and C.G Jacson,1961Anopheles stephensi.]]>25209217Mahan, B.N. and N.N Singh,1965Anopheles stephensi.]]>25266278Zaim, M.,19873392396Manouchehri, A.V., B. Janbakhsh and F. Rohani,1976Anopheles stephensi to malation in Bandar Abbas, Iran.]]>36320322Mofidi, C.H. and B. Samimi,1960Anopheles stephensi to dieldrin.]]>65034Mofidi, C., B.N. Samimi and M. Ghiassedin,1958650: 3-434Mukhopadhyay, A.K., P. Karmakar, A.K. Hati and P. Dey,199734188196Thavaselvam, D., A. Kumar and P.K. Sumodan,1993Anopheles stephensi, Culex quinquefasciatus and Aedes aegypti in Panaji, Goa.]]>307579Theearaphap, C., R. Pornpimol and J. Piyanoot,2002Anopheles minimus. species A. a malaria vector in Thailand.]]>27222229Vatandoost, H., M. Mashayekhi, M.R. Abaie, M.R. Aflatoonian, A.A. Hanafi-Bojd and I. Sharifi,200542100108Vatandoost, H., M.A. Oshaghi, M.R. Abaie, M. Shahi and F. Yaaghoobi et al.,2006Anopheles stephensi Liston in the malarious area of Hormozgan province, Southern Iran, 2002.]]>97196203WHO.,19921992Mellon, R.B. and G.P.Georghiou,19841984pp: 6567Thomas, C. and A. Spark,19871987WHO.,19851985WHO.,19881988WHO.,19981998Bansal, S.K. and K.V. Singh,2004Anopheles stephensi, Liston.]]>25485488Brooke, B.D., R.H. Hunt and M. Coetzee,2000Anopheles gambiae.]]>1418Chakraborty, S. and N. Tandom,2000Anopheles stephensi in Calcutta, West Bengal.]]>374345Ganesh, K.N., J. Urmila, P. Guillet and L. Manga,2003Anopheles stephensi (Liston) and A. culicifacies (Giles) from Mysore, India.]]>1173038Hodjati, M.H., N. Mousavi and C.F. Curtis,2003A. stephensi.]]>405459Kolaczinski, J. and C.F. Curtis,2001Anopheles stephensi.]]>574145Kumar, S., A. Thomas, A. Sahgal, A. Verma, T.S. Amuel and M.K. Pillai,2004Anopheles stephensi after selection with deltamethrin or a deltamethrin-piperonyl-butoxide combination.]]>411016Malcolm, C.A. and A.S. Robinson,2001Anopheles stephensi (Diptera: Culicidae).]]>6471476