| Affiliation: | (1) Korkuteli Vocational School, Department of Plant Production, University of Akdeniz, Antalya, Turkey;(2) Faculty of Agriculture, Department of Plant Protection, University of Akdeniz, Antalya, Turkey |
| Abstract: | Significant antibacterial activity was observed in the essential oil (E.O.) ofRosa damascena Mill. and the Minimum Bactericidal Concentration (MBC) of the E.O. was determined as 1386.5 μg ml−1 forErwinia amylovora, the causal agent of fire blight disease. Ooze formation on immature pears and lesion formation in artificially inoculated shoots were completely (100%) prevented by the essential oil ofR. damascena (1500 μg ml−1), essential oil ofThymbra spicata var.spicata (500 μg ml−1) and streptomycin (100 μg ml−1). Copper oxychloride plus maneb significantly reduced ooze formation and lesion formation, but the control was less than that obtained with the essential oils or streptomycin. The essential oil ofR. damascena may be a useful natural bactericide for the control of the fire blight pathogen,E. amylovora. http://www.phytoparasitica.org posting July 14, 2004. |
