Asian Journal of Biological Sciences1996-3351xxxx-xxxxScience International10.3923/ajbs.2009.1.6Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) with Two Bioassay Methods]]>AzimiM. PourmirzaA.A. SafaralizadehM.H. MohitazarG. 1200921Lethal impacts of spinosad were determined against adults
of Leptinotarsa decemlineata (Say), with two bioassay methods.
Adult insects were exposed to different concentrations of spinosad for
24, 48 and 72 h. After the exposure intervals, mortality was scored in
both bioassay techniques. Complete mortality was obtained 3 days post-exposure
in contact and dipping bioassay methods at 240 and 7920 ppm of test chemical,
respectively. A significant linear relationship between spinosad concentrations
and mortality rates was detected. The estimated LC50 values
were 6.59 and 12.50 ppm by contact and dipping methods at 72 h post-treatment,
respectively. Overall, results indicated that CPB adults were highly susceptible
to spinosad. Contact method, however, exhibited less variability in LC50
estimates and showed a higher degree of sensitivity than the dipping
method. Contact method is simple and sensitive test bioassay technique
for measuring susceptibility of CPB adults to spinosad.]]>Alyokhin, A., G. Dively, M. Patterson, M. Mahoney, D. Rogers and J. Wollam,200683485494Azimi, M., A.A. Pourmirza and M.H. Safaralizade,2008Leptinotarsa decemlineata (Say).]]>2008Bjorksten, T.A. and M. Robinson,2005Hemiptarsenus varicornis and Diglyphus isaea (Hymenoptera: Eulophidae) from Australia.]]>9818311838Bond, J.G., C.F. Marina and T. Williams, 2004185056Choo, L.E.W., C.S. Tang, F.Y. Pang and S.H. Ho,200093905910Erdogan, P. and S. Toros, 2007Xanthium strumarium L. extracts on Colorado potato beetle, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae).]]>2423432Galvan, T.L., R.L. Koch and W.D. Hutchison,200534108114Gerber, B.S. and K.N. Finn, 20052nd Edn.,pp: 180pp: 180Igrc, B.J., R. Bazok, S. Bezjak, T.G. Culjak and J. Barcic,2006Leptinotarsa decemlineata) (Say), Coleoptera: Chrysomelidae.]]>79223232Igrc, J., R. Dobrincic and M. Maceljski, 1999727680Jiang, Y. and M.S. Mulla, 2005Liohippelates collusor (Diptera: Chloropidae) to neonicotinoids and spinosad insecticides.]]>316570Kalushkov, P. and R. Batchvarova, 2005Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae) in Bulgaria.]]>192833Michaud, J.P. and A.K. Grant, 20033110Mota-Sanchez, D., R.M. Hollingworth, E.J. Grafius and D.D. Moyer, 2005Leptinitarsa decemlineata (Say) (Coleoptera: Chrysomelidae).]]>623037Nault, B.A., S.D. Costa and G.G. Kennedy, 2000Bacillus thuringiensis subsp. tenebrionis-Treated potato foliage from the field.]]>93149156Olson, E.R., G.P. Dively and J.O. Nelson, 200093447458Pourmirza, A.A., 20059821762180Robertson, J.L. and H.K. Preisler,19921st Edn.,pp: 35-48pp: 35-48SAS, 1999Scott, I.M., H. Jensen, J.G. Scott, M.B. Isman, J.T. Arnason and B.J.R. Philogene,2003Leptinotarsa decemlineata Say (Coleoptera: Chrysomelidae).]]>54212225Williams, T., J. Valle and E. Viٌuela, 200313459475Zhao, J.Z., B.A. Bishop and E.J. Grafius, 20009315081514Thompson, G.D., R. Dutton and T.C. Sparks, 200056696702