Journal of Entomology1812-56701812-5689Asian Network for Scientific Information10.3923/je.2008.45.50Culex quinquefasciatus]]>RaoM. SrinivasaN. MurtyU.S. GangadasuB. RajuB. ChinaRameshC.H. Bharat KumarS. Jayathirtha RaoV. 1200851Mosquito larvicidal efficacy of seven different synthesized imidacloprid compounds (IMD) with different substitutions (chlorine ion, methyl group, methoxy group, ester group, phenyl ring and pyridine ring) of Imidacloprid were studied on the IV stage larvae of mosquito, Culex quinquefasciatus. LC50 of each compound (IMD1-IMD-7) was determined using probit analysis. Effects of these compounds on biochemical toxicity were also determined by observing the changes in total protein, lipid and Acetylcholine esterase activity of the mosquito larvae. The results show that due to the action of these compounds, higher amount of protein production (p<=0.001) and AchE activity (p<=0.001) and significant decrease in total lipid activity (p<=0.001) were observed when compared to the control. Similar types of results were also reported on increase production of protein, lipid and acetylcholine activity due to the action of insecticides in other insects. Hence, it is concluded that, these seven synthesized compounds can be used as mosquito larvicides.]]>Caroline, C.,2001221521Casida, J.E.,19981998Chao, S.L. and J.E. Casida,1997587788Decourtye, A., C. Armengaud, M. Renou, J. Devillers, S. Cluzeau, M. Gauthier and M. Pham-Delague,2004Apis mellifera L.).]]>788392Elbert, A., B. Beckar, J. Hartwig and C. Erdelen,199144113136Ellman, G.L., K.D. Courtney, V. Andres Jr. and R.M. Featherstone,196178890Finney, D.J.,19713rd Edn.,pp: 76-80pp: 76-80Guessan, N.R. and F. Darriet, P. Guillet and P. Carnevale et al.,2003Anopheles gambiae from Ivory Coast based on reduced sensitivity of acetylcholinesterase.]]>171925Kabir, K.E., A.R. Khan and M.A. Mosaddik,2003Bryonopsis laciniosa L.]]>127112115Lowry, O.H., N.J. Rosebrough, A.L. Farr and R.J. Randall,1951193265275Mason, G., M. Rancati and D. Bosco,2000Tomato yellow leaf curl geminivirus (TYLCV) by the whitefly Bemisia tabaci (Gennadius).]]>19473479Michael, E.,20002000pp: 41-82pp: 41-82Mouches, C., Y. Pauplin, M. Agarwal, L. Lemieux and M. Herzog et al.,19908725742578Nagata, K., J.H. Song, T. Shono and T. Narahashi,1998285731738Suchail, S., L. Debrauwer and L.P. Belzunces,2004Apis mellifera.]]>60291296Tomizawa, M. and J.E. Casida,200157914922Van Handel, E.,19851299301Wang, Y., Jiagao Cheng, Xuhong Qian and Zhong Li,20071526242630WHO,19631963Yamamoto, I. and J.E. Casida,19991999