Plant Disease (1998) 82, p. 129 (Clark et al.)

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C.A. Clark, M.W. Hoy, J.P. Bond, C. Chen, Y.-K. Goh, X. Liang, X. Liu and P. Lotrakul (1998)
First report of Erwinia carotovora subsp. carotovora causing bacterial root rot of sweetpotato (Ipomoea batatas) in Louisiana
Plant Disease 82 (1), 129-129
Abstract: During 1995, storage roots of sweetpotato from Louisiana, USA were observed with symptoms of bacterial root rot. The bacterium Erwinia carotovora subsp. carotovora was isolated from the diseased plants. The identification was based on the nutritional profile and other characteristics of the isolates. Pathogenicity of the isolates was demonstrated by inoculation and re-isolation. So far E. carotovora subsp. carotovora has been isolated in only one location and is less virulent on sweetpotato storage roots compared to Erwinia chrysanthemi which remains the the most important pathogen causing bacterial soft rot in sweetpotato.
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Database assignments for author(s): Christopher A. Clark

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Pectobacterium carotovorum Sweet potato (Ipomoea batatas) U.S.A. (mid S)
Dickeya (genus) Stored fruits/vegetables U.S.A. (mid S)
Dickeya (genus) Sweet potato (Ipomoea batatas) U.S.A. (mid S)