M. Parvateesam and Vanita Shukla
Abstract
Aueous extracts from leaves of two aromatic and medicinally important plants Citrus limon and Murray() koenigii were tested for their antibacterial activity against Erwinia herbicola, E. uredovora, E. amylovora, E. stewartii, Psuedomonas syringae, P. viridiflava and Xanthomonas compestris isolated from leaf surface of the above two test plants Investigations revealed that aqueous extract from leaves of Citrus limon inhibited the growth Erwinia herbicola, E amylovora, E. sterwartii, P viridiflava and P. syringae whereas leaf extract from M. koenigii inhibited the growth of E. uredovora, E. stewartii, P. syringae and X. cam pesteris. Inhibitory effect of leaf extracts from C. iimon was totally absent on E uredovora and X. cam pestris whereas aqueous extract from M. koenigii leaves did not inhibit the growth of E. herbi cola, E. amylovora and P. viridiflava. Thus the present study reveals that the platn extracts from the two test plants have potential bacteriostatic/bactericidll effect and can be used as bicontrol agents.