Study on the preparation and evaluation of Insecticidal/pesticidal activity of Entomopathogenic fungi (Beauveria bassiana) metabolites fused Silver Nanoparticles

Abstract

The green revolution strategy, which promotes the use of synthetic agricultural chemicals like pesticides and fertilizers, the adoption of high-yielding, nutrient-responsive crop varieties, increased irrigation potential exploitation, etc., has, for the most part, increased production output. However, it will also cause a decline in the productivity and production of various crops as well as harm to the environments and soil health. Plant Growth Promoting Rhizobacteria (PGPRs) have special functions in the soil that improve the health and productivity of plants. PGPR produce phytohormones, fix atmospheric nitrogen, colonize the rhizosphere, aid in the production of secondary metabolites, shield plants from pathogens, produce siderophores, and aid in the uptake of nutrients by solubilizing phosphate. They also produce biologically active substances that have an impact on the development and growth of plants. In the present investigation, the fungicidal activities of Streptomyces sp., the significant PGPRs were screened for antifungal activities while an Entomopathogenic fungi (Baeuveria bassiana) was utilized for production of crude metabolites which were utilized to prepare Silver fused nanoparticles, the nanoparticles were found to have significant insecticidal/pesticidal properties against larvae invading Cauliflower crops

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