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Occurrence of Fusarium wilt and Twospotted Spider Mite under Plastic Mulched and Non-Plastic Mulched Bed in Hydroponic Culture of Strawberry
Res. Plant Dis. 2018;24:257-264
Published online December 31, 2018
© 2018 The Korean Society of Plant Pathology.

Myeong Hyeon Nam1*, Hyun Sok Kim1, Tae Il Kim1, and Sang-Keun Oh2*

1Nonsan Strawberry Experiment Station, Fruit Vegetable Research Institute, Chungnam ARES, Nonsan 32914, Korea
2Department of Applied Biology, Chungnam National University, Daejeon 34134, Korea
*M. H. Nam Tel: +82-41-635-6348 Fax: +82-41-635-7931 E-mail: namtel7@korea.kr
S.-K. Oh Tel: +82-42-821-5762 Fax: +82-42-823-8679 E-mail: sangkeun@cnu.ac.kr ORCID https://orcid.org/0000-0002-6538-9200
Received September 21, 2018; Revised October 23, 2018; Accepted October 23, 2018.
cc This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Hydroponic strawberry culture system is increasing annually. Most of strawberry farmers use mulched bed in hydroponic culture and strawberry plants were transplanted in early September. After transplanting, Fusarium wilt caused by Fusarium oxysporum f. sp. fragariae and twospotted spider mite (TSSM), Tetranychus urticae, can increase their occurrence under high temperature condition. Therefore, we conducted for comparison occurrence of Fusarium wilt and TSSM on mulched with green polyethylene film and non-mulched bed. Occurrence of Fusarium wilt on mulched bed was started from early October and more increase than non-mulched bed. Damage rate of TSSM on mulched bed was shown higher than non-mulched bed. Temperature of substrate in mulched bed increased than non-mulched bed, but relative humidity near plants was decreased. As a result, use of non-mulched bed should be effective for reducing of Fusarium wilt and TSSM on strawberry plants.
Keywords : Disease index, Fragaria x ananassa, Non-mulched bed


December 2018, 24 (4)