From the present study it is clear that lemongrass oil possess a promising antibacterial activity against the test organisms.The results obtained from the Agar diffusion assay and broth dilution method support the general indication that gram positive organisms are more sensitive to the oil than gram negative bacteria. Similar observations were made by Onawunmi and Ongulana and Cimanga
et al. P. aeruginosa were found resistant at all the concentration of lemongrass oil including neat. Similar results were reported by Pereira et al, Marta War et al.,Torris et al, Alam et al, and Onawunmi et al,