10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 3 2012 (July - September) Antimicrobial activity of methanolic, chloroform, hexane and aqueous stem extracts of lessThan i greaterThan Erythrina variegata lessThan /i greaterThan L. were analyzed against nine bacterial pathogens such as lessThan i greaterThan Salmonella typhi, lessThan /i greaterThan lessThan i greaterThan Pseudomonas putida, Pseudomonas aeruginosa, Escherichia coli, Klebsiella lessThan /i greaterThan sp. lessThan i greaterThan , Proteus lessThan /i greaterThan sp. lessThan i greaterThan , Serratia marcescens, Bacillus circulans, Staphyloccus aureus lessThan /i greaterThan and five fungal pathogens viz. lessThan i greaterThan Aspergillus niger, Aspergillus fumigatus, Sclerotium lessThan /i greaterThan sp. lessThan i greaterThan , Rhizopous lessThan /i greaterThan sp. lessThan i greaterThan , Candida lessThan /i greaterThan sp. Among all the strains, few strains like Serratia lessThan i greaterThan marcescens , E.coli, lessThan /i greaterThan lessThan i greaterThan Pseudomonas putida lessThan /i greaterThan lessThan i greaterThan , lessThan /i greaterThan lessThan i greaterThan Bacillus circulans lessThan /i greaterThan was found to be more susceptible strains and among all the solvent extracts methanol showed promising antimicrobial activity. The results obtained in this study suggested that the stem extract of lessThan i greaterThan Erythrina lessThan /i greaterThan lessThan i greaterThan variegate lessThan /i greaterThan L. have high potential for use in the treatment of diseases caused by these test organisms.  K. Sahoo, S.S Panda, D. Das And N.K Dhal Antimicrobial activity, disc diffusion, Erythrina variegata L., methanolic extracts 766-772