Potential of entomopathogenic fungi for biocontrol of Spodoptera litura Fab. (Lepidoptera: Noctuidae)
Kumari Pragya and SB Das
Glycine max ‘The Miracle Crop’ is occupying an eminent position in world agriculture. Among major defoliators, infesting soybean crop, Tobacco caterpillar, Spodoptera litura Fab. (Lepidoptera: Noctuidae) damages the crop during the vegetative stage as well as reproductive stage. Scientists are speculating an increased outbreak of this pest as the increased resistance level against various insecticides had been reported. Therefore, an effective alternative and an environmentally safe pest management strategy is the demand of day and use of biocontrol agents is undoubtedly a boon to be harnessed. Efficacy of entomopathogenic fungi i.e. Beauveria bassiana, Metarhizium anisopliae and Lecanicillium lecanii to 2nd instar larval stage of S. litura at concentrations 1×108, 1×1010 and 1×1012 spores/ml were tested in-vitro at Biocontrol Research and Production Center, JNKVV, Jabalpur. Highest larval mortality (2nd instar) was observed with B. bassiana, followed by M. anisopliae and lowest in L. lecanii, at all the three concentrations i.e. 1× 1012, 1× 1010 and 1× 108 spores / ml, which were significantly superior than the control. Therefore, in the present study B. bassiana at highest spore concentration (1× 1012 spores / ml) was found to be highly effective as it registered maximum larval mortality at 120 HAT. It can be inferred that larval mortality was dependent on dose, time and pathogenicity of EPF used.
How to cite this article:
Kumari Pragya and SB Das. Potential of entomopathogenic fungi for biocontrol of Spodoptera litura Fab. (Lepidoptera: Noctuidae). The Pharma Innovation Journal. 2022; 11(6S): 249-254.