Evaluation of adjuvants on growth and virulence of Metarhizium rileyi against Spodoptera litura (F.)

This study evaluated the effect of adjuvants viz. glycerol, boric acid, carboxy methyl cellulose (CMC) and Tween-80 on growth Metarhizium rileyi (Farlow) Kepler, Rehner Humber isolates. Their virulence against Spodoptera litura (F.) larvae has also been assessed. The isolates were observed to exhibit maximum surface area coverage biomass with glycerol @ 5% CMC 0.5%. Further, NIPHM isolate M. supplemented mixture adjuvants- 0.5% when S. gave mortality (63.33%) increase over control (without 2.69%). demonstrates possible role in enhancing its litura.