The present research investigates the antimicrobial activities of the samples extracted from the leaves and fruits of Eucalyptus globulus through disc diffusion susceptibility assay using 1, 2 and 3mg disc-1 concentrations. Different extracted samples from the leaves and fruits of Eucalyptus globulus exhibited different degrees of antimicrobial. The data indicated that n-butanol and ethyl acetate extracted fraction of both the leaves and fruits inhibited the growth of all microorganisms at all the tested concentrations. Aqueous extracted sample of the leaves inhibited the growth of Candida albicans while the same fraction from the fruits showed no activity against Bacillus subtilis at any concentration. N-hexane extracted samples of the leaves inhibited the growth of Bacillus subtilis, E. coli and Pseudomonas aeruginosa at the tested concentrations while no activity was recorded against Klebsiella pneumonia, Candida albicans and Stephylococcus aureus. N-butanol extracted samples from the leaves and fruits showed activity against Pseudomonas aeruginosa at the tested concentrations. In case of leaves, the most susceptible bacteria was Bacillus subtilis (gram positive) and Stephylococcus aureus (gram positive) was the most resistant one. In case of fruits the most susceptible bacteria was Stephylococcus aureus (gram positive) and E. coli (Gram negative) was the most resistant one.

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