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Survival of Erwinia amylovora on Surfaces of Materials Used in Orchards
Res. Plant Dis. 2019;25:89-93
Published online June 30, 2019
© 2019 The Korean Society of Plant Pathology.

Hyun Ju Choi, Yeon Ju Kim, Yeon-Jeong Lim, and Duck Hwan Park *

Applied Biology Program, Division of Bioresource Sciences, Kangwon National University, Chuncheon 24341, Korea
Tel: +82-33-250-6432
Fax: +82-33-259-5558
Received June 12, 2019; Revised June 16, 2019; Accepted June 16, 2019.
cc This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fire blight disease caused by the bacterium, Erwinia amylovora, was observed in apple and pear orchards in Korea in 2015. Since then, it has spread, sometimes over long distances to other orchards. Therefore, we examined the ability of E. amylovora to survive in soils and on the surfaces of common materials such as T-shirts, wrist bands, pruning shears, and rubber boots by both conventional PCR (cPCR) and quantitative PCR (qPCR) methods. E. amylovora was detected in all materials tested in this study and survived for sufficiently long periods to cause fire blight disease in new sites. Thus, based on the results of this study, sanitation protocols must be applied to equipment during orchard work.
Keywords : Apple, Erwinia amylovora, fire blight, longevity, pear

June 2019, 25 (2)