Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 550042
Title Pest categorisation of Clavibacter sepedonicus
Author(s) Bragard, C.; Dehnen-Schmutz, Katharina; Serio, Francesco Di; Gonthier, Paolo; Miret, Josep Anton Jaques; Fejer Justesen, Annemarie; MacLeod, A.; Magnusson, C.; Milonas, Panagiotis; Navas-Cortes, Juan A.; Parnell, Stephen; Potting, R.; Reignault, Lucien; Thulke, H.H.; Werf, W. van der; Civera, Antonio Vicent; Yuen, Jonathan; Zappalà, Lucia; Wolf, J.M. van der; Kaluski, Tomasz; Pautasso, Marco; Jacques, Marie-Agnès
Source EFSA Journal 17 (2019)4. - ISSN 1831-4732
DOI https://doi.org/10.2903/j.efsa.2019.5670
Department(s) PE&RC
Crop and Weed Ecology
PPO/PRI Biointeractions and Plant Health
Publication type Refereed Article in a scientific journal
Publication year 2019
Keyword(s) bacterial ring rot of potato - European Union - pest risk - plant health - plant pest - quarantine
Abstract Following a request from the European Commission, the EFSA Panel on Plant Health performed a pest categorisation of Clavibacter sepedonicus, a well-defined and distinguishable bacterial plant pathogen of the family Microbacteriaceae. C. sepedonicus causes bacterial ring rot of potato and is reported from North America, Asia and Europe. The bacterium is mostly tuber transmitted, but it can also enter host plants through wounds or via contaminated equipment. C. sepedonicus is regulated in Council Directive
2000/29/EC (Annex IAII, as Clavibacter michiganensis subsp. sepedonicus) as a harmful organism whose introduction into the EU is banned. In addition, Council Directive 1993/85/EEC concerns the measures to be taken within EU Member States (MS) against C. sepedonicus to (a) detect it and determine its distribution, (b) prevent its occurrence and spread, and (c) control it with the aim of eradication. The pest is present in several EU MS, but in all cases with a restricted distribution and under official control. C. sepedonicus could enter the EU and spread primarily via host plants for planting (i.e. potato tubers).
The pest could establish in the EU, as the main host (potato) is commonly grown and climatic conditions are favourable. Direct potato losses following infection by C. sepedonicus can be substantial and are due to the destruction of the vascular tissue, wilting of the plant and rotting of the tubers. Infected hosts can
remain asymptomatic. The main knowledge gaps are the geographic distribution of the pest and the host range. The criteria assessed by the Panel for consideration of C. sepedonicus as a potential quarantine pest are met, while, for regulated non-quarantine pests, the criterion on the widespread presence in the EU is not met.
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