International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2015, Volume : 3, Issue : 5
First page : (101) Last page : (106)
Article doi: http://dx.doi.org/10.18782/2320-7051.2105

Efficacy of some novel insecticide molecules against incidence of whiteflies (Bemisia tabaci Genn.) and occurrence of Yellow Mosaic Virus (YMV) disease in urdbean

M.S. MahaLakshmi*, M. Sreekanth, M. Adinarayana and Y. Koteswara Rao
Regional Agricultural Research station, Lam Farm, Guntur, Andhra Pradesh
*Corresponding Author E-mail: msmlaxmi@gmail.com
Abstract
Field efficacy of different new insecticide molecules was evaluated against whiteflies and Yellow mosaic virus disease in urdbean at RARS, Lam, Guntur, Andhra Pradesh for two consecutive seasons i.e. during Rabi 2010-11 and 2011-12. Among the test insecticides, spiromesifen 240 SC @ 0.4 ml/lt followed by buprofezin 10 EC @ 1.0 ml/lt werefound as the most effective treatments with more than 75 per cent mean reduction innymphal population of whiteflies and with below 20 per cent incidence of YMV.Among the four neonicotinoid molecules, acetamiprid 20 SP @ 0.2 g/ltwas found promising against whiteflies. Triazophos 40 EC @ 1.25 ml/ltwas found onpar with the neonicotiniods such as imidacloprid 200 SL @ 0.3 ml/lt, thiamethoxam 25 WG @ 0.2 g/lt and thiacloprid 21.7 SC @ 1.25 ml/lt. All the treatments were found significantly superior over the untreated control in reducing the incidence of YMV in blackgram. However,upto 20 to 40 per cent incidence of YMV was observed in treated plots also, hence adoption ofintegrated approach is essential for the management of YMV, rather than relying upon chemical insecticides alone.

Keywords:Whitefly, YMV, spiromesifen, buprofezin, neonicotinoids, Urdbean

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: MahaLakshmi, M.S., Sreekanth, M., Adinarayana, M. and Rao, Y.K., Efficacy of some novel insecticide molecules against incidence of whiteflies (BemisiatabaciGenn.) and occurrence of Yellow Mosaic Virus (YMV) disease in urdbean, Int. J. Pure App. Biosci. 3(5): 101-106 (2015). doi: 10.18782/2320-7051.2105