Effect of Trichoderma species on sclerotium rolfsii causing root rot of Groundnut

Abstract :

The antibacterial activity of aqueous and ethanolic extracts of Vicoa indica and Tridax procumbens were tested against multi-drug resistant clinical isolates of Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Klebsiella pneumoniae. The Minimum Inhibitory Concentrations (MIC) of 4mg/ml (Tube dilution ) and 2mg/ml (Disc Diffusion) of ethanolic extract of Vicoa indica were active against drug resistant Staphylococcus aureus, while a MIC of 5mg/ml(Tube Dilution) and 3mg/ml (Disc Diffusion) of ethanolic extract of Tridax procumbens were active against drug resistant Escherichia coli. There was no observable activity by both the extracts of both the herbs against K. pneumonia and P. aeruginosa.