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Antibacterial Activity of Antagonistic Bacteria and Plant Extract on Erwinia amylovora the Pathogen of Fire Blight Disease in Egypt
Abstract
The blossom blight phase of fire blight disease on pear trees, caused by the bacterium Erwinia amylovora (Burrill), was typically managed by applying the antibiotic, streptomycin sulfate and copper, to trees during blossom. Biological control agents of fire blight can be achieved by applying nonpathogenic bacteria, viz. Bacillus subtilis or Pantoea agglomerans and plant extract, viz. Harmel (Peganum harmala L.) during open flowers as spraying treatments. The objective of this study was to examine the alternative bactericides against bacterium E. amylovora in vitro and in vivo during two seasons (2013-2014) in Al-Gharbia governorate, Egypt. Our results revealed the ability of these antagonistic bacteria and plant extract can decreased fire blight severity on pear trees. Further studies at different locations in Egypt with large scale application would allow us to make stronger recommendations including their ability to prevent disease and used them as main component in integrated pest management program.
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References
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DOI: 10.33687/phytopath.004.02.1187
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Copyright (c) 2015 Khaled H. Arafat, Shaheen A. Hanan, Abd-El-Aziz M. Rabab
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