Situation of Ralstonia solanacearum in the EPPO region in 1997

Abstract

In the early 1990s. Rulstoniu solunuceuncm, an EPPO A2 quarantine pest which previously occurred only sporadically in some of the southern Member Countries, caused a number of outbreaks of potato brown rot over a wider area in the EPPO region. The National Plant Protection Organizations of the EPPO Member Countries concerned have taken action to eradicate the pest, and in particular the European Union has taken joint action through a Control Directive. Eradication has been successful in many cases, but is complicated by the fact that R. solunuceuncm can persist on wild Solunum dulcumuru and be dispersed by water. EPPO has collected information from its Member Countries through the period of the outbreaks and eradication, and presents in this article an overall view and a detailed country-by-country situation.

Spatial Stochastic Simulation Offers Potential as a Quantitative Method for Pest Risk Analysis

“…In the 1990s, several western European countries experienced outbreaks and spread of this bacterium, which, with one exception, ( 9 ) had previously been found only in southern Europe. ( 10 ) Although eradication programs were immediately put into action in the outbreak areas, a number of countries importing potatoes from infested countries established import restrictions.…”

Ralstonia solanacearum: A new threat to potato production in Serbia

“…Furthermore, the bacterium was not found in any of 134 water samples tested, including those originating from areas in which the bacterium was found in ware potato samples. It is noteworthy that outbreaks of the bacterium in several European countries (UK, The Netherlands, Belgium, France, Spain) during the past two decades have been mostly associated with contamination of surface water used for irrigation, or the use of irrigation water from sources in which infected S. dulcamara was found to be growing (Janse, 1996;Grousset et al, 1998;Elphinstone et al, 1998;Caruso et al, 2000). Furthermore, Urtica dioica has also been reported to be a reservoir of the bacterial wilt pathogen (Wenneker et al, 1999).…”

“…Being a highly heterogeneous and complex pathogen, R. solanacearum is one of the major constraints in the production of many important vegetables, among which potato is a major concern for the European region. Moreover, race 3 appears to have been responsible for outbreaks of brown rot of potato in several European countries (Belgium, France, Germany, Italy, The Netherlands, Portugal, Spain, Turkey, UK) in the past two decades (Grousset et al, 1998;Hayward et al, 1998;Stefani et al, 2005). The devastating nature of this soil-borne pathogen and a lack of effective control measures are the main reasons for its quarantine status both in the EPPO region and in Serbia (EU, 1998;Pravilnik, 2009Pravilnik, , 2010.…”

Investigation and control of potato brown rot in Germany, especially in Bayern1

“…Since 1992, race 3 (biotype 2) has been reported in several Member States of the European Union (for instance Belgium, France, Italy, Portugal, the UK and especially in The Netherlands). The present situation in the EPPO region has been summarized by Grousset et al (1998).…”