Journal of Entomology1812-56701812-5689Asian Network for Scientific Information10.3923/je.2007.56.59Beauveria bassiana]]>Mohi-ud-dinSajad ZakiF.A. MunshiN.A. JanArif WaniR.A. 1200741Beauveria bassiana isolated locally from the larvae of Bombyx mori was evaluated at different concentrations viz. 1x108, 1x106, 1x104 and 1x102spore mL-1 against white grub (Holotrichia sp.) for dose optimization of this fungus. It was observed that among these concentration 1x108 spore mL-1 was the most promising one, showing initial mortality very early and cent per cent in a shorter period of time. The mortality in general in each treatment was recorded in the order of 1x108, 1x106, 1x104 and 1x102spore mL-1. This spore concentration viz. 1x108 of B. bassiana was tested against different stages of white grub (Holotrichia sp. ) to determine the comparative susceptibility of different stages to this fungus. It was observed that initial (56.66%) mortality occurred on 4th day and cent percent on the 10th day, respectively in case of 1st instar. The initial mortality (46.66 and 43.33%) in 2nd and 3rd instars was recorded on 4th and 6th day and 100% mortality on 12th and 16th day, respectively. These results showed that 1st stage grubs were more susceptible followed by 2nd and 3rd instar grubs.]]>Lacey, L.A. and M.S. Goettel,199540327Manjula, K. and B.N. Solochanama,200163481482Reinert, J.,2000pp: 35-36pp: 35-36Reinert, J.A. and S.J. Maranz,2000Spodoptera frugiperda) on field treated Cynodon dactylon.]]>1297302Reinert, J.A. and J.C. Read,2001Spodoptera frugiperda) among kentucky bluegrass cultivars. (Abstr. C5-161200-P).]]>Santharam, G.,2001Metarhizium anisopliae, Beauveria bassiana and Paecilomyces fumosoroseus for pest management.]]>pp: 95-103pp: 95-103Sharma, S., R.B.L. Gupta and C.P.S. Yadav,199929299305Snedcorn, G. and W. Corcrans,19675th Edn.,Vimala, D.P.S.,1994Nomurae rileyi and its evaluation for control of Spodoptera litura.]]>63145159Yadav, B.R., P.C. Trivedi and C.P.S. Yadav,2002Metarhizium anisopliae against white grub (Holotrichia consanguinea Blanch).]]>30416418