Evaluate on substrates for mass production of entomopathogenic fungus Beauveria bassiana (Balsamo)

The present investigation entitled “Mass Production of entomopathogenic fungai Beauveria bassiana (Metsch.) on liquid and solid media” was carried out at Bio Control Laboratory, Department of Entomology, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut during 2018-19. In all there were eight treatments including control replicated thrice in a randomized block design. The results obtained in the study are summarized. The effect of different substrates for the mass production of Beauveria bassiana spore/ml was significantly higher recorded. Data recorded on 7, 14, 21, 28, 35 after the day after inoculation of various treatments in the, T10 Savoured dextrose broth (SDB), was the best treatment by bringing down the B. Bassiana production up to (49.48) spore/ml in liquid medium during the 2018-19 years. The other treatments in order of spore producing was with T11 Potato dextrose broth (PDB) (38.52), in liquid medium and solid medium in the treatment and T8 Cowpea Vigna unguiculata + Molasses + 1% YE + 1.0 g Dextrose (28.73), followed by with T7 Black gram Vigna mungo + Molasses + 1% YE + 1.0 g Dextrose (27.52 spore/ml, T5 Cowpea Vigna unguiculata + Molasses + 1% YE (17.53 spore/ml), T4 Black gram Vigna mungo + Molasses + 1% YE (14.87 spore/ml), T2 Cowpea Vigna unguiculata + Molasses (10.50 spore/ml), T1 Black gram Vigna mungo + Molasses (8.35 spore/ml), T9 Gram Cicer aeritinum + Molasses + 1% YE + 1.0 g Dextrose (3.92 spore/ml), T6 Gram Cicer aeritinum + Molasses + 1% YE (2.85 spore/ml) and T3 Gram Cicer aeritinum + Molasses respectively.