1Krishi Vigyan Kendra, Kampasagar, Nalgonda, Andhra Pradesh (508207), India
2Agri-Biotech Foundation, Acharya N. G. Ranga Agricultural University, Rajendranagar, Hyderabad, Andhra Pradesh (500030), India
3All India Coordinated Research Project on Biological Control of Crop Pests and Weeds, ARI, Rajendranagar, Acharya N. G. Ranga Agricultural University, Hyderabad, Andhra Pradesh (500030), India
*Correspondence to E-mail: panuganti_kanth@rediffmail.com
Online published on 31 March, 2014.
Six isolates of Beauveria bassiana were mass multiplied using five economically viable substrates, viz. sorghum, rice bran, rice husk, press-mud and bagasse to identify the suitable substrate as wells as the vigorous isolate(s) for large scale multiplication. The results of the study showed sorghum as the most suitable substrate for large scale mass multiplication as the conidia harvested from sorghum recorded highest mortality of Spodoptera litura. Among six isolates, the isolate Bb-5A was found most virulent as it recorded highest mortality of Spodoptera litura mass multiplied on all the substrates.
Mass multiplication, Beauveria bassiana, Spodoptera litura, substrates
