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http://dx.doi.org/10.5423/RPD.2016.22.3.198

Dieback of Apple Tree by Major Soil Borne Diseases in Chungbuk Province from 2013 to 2015  

Lee, Sung-Hee (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research and Extension Services)
Kwon, Yeuseok (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research and Extension Services)
Shin, Hyunman (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research and Extension Services)
Kim, Ik-Jei (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research and Extension Services)
Nam, Sang-Yeong (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research and Extension Services)
Hong, Eui Yon (Bureau of Research & Development, Chungcheongbuk-do Agricultural Research and Extension Services)
Kwon, Soon-Il (Apple Research Institute, National Institute of Horticultural and Herbal Science, Rural Development Administration)
Kim, Daeil (College of Agriculture, Life & Environment Sciences, Chungbuk National University)
Cha, Jae-Soon (College of Agriculture, Life & Environment Sciences, Chungbuk National University)
Publication Information
Research in Plant Disease / v.22, no.3, 2016 , pp. 198-201 More about this Journal
Abstract
Recently, severe dieback of apple tree has occurred in the apple orchards of Chungbuk province. Dieback rate and its casual agents have been investigated on the Chungbuk province apple orchards in 2013-2015. Out of 29,265 apple trees in the 27 orchards throughout Chungbuk province, 4,000 apple trees (13.7%) showed dieback symptoms. The causes of dieback were Phytophthora rot (50.4%), violet root rot by Helicobasidium sp. (27.1%), rodents (10%), white root rot by Rosellinia sp. (6.3%), and freezing injury (6.3%). Compared to previous reports published in 1995 and 2006, Phytophthora rot was the most dominant disease, which is thought to be due to high temperature during growing season and the increase of lowland cultivation. Results of this study will be useful to establish of the management strategy of apple tree dieback that has been increased recently.
Keywords
Apple tree; Dieback; Root rot; Soil-borne disease;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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