Eradication of Ralstonia pseudosolanacearum in the Netherlands
In September and October 2015, R. solanacearum (race 1) (now considered to be R. pseudosolanacearum, EPPO A2 List) was found in glasshouse companies producing Rosa plants for planting. In 2015 and 2016, tracing-back and tracing-forward investigations revealed the presence of the bacterium in 15 companies (including 5 propagation companies) covering about 36 ha (EPPO RS 2015/182, 2017/017). Official measures were implemented to prevent further spread and eradicate the bacterium. Monitoring showed that some plants or irrigation water were still contaminated in 2017 at one compagny and in 2018 at three companies. In 2019, water samples collected from these companies were tested and found to be free from the bacterium. The possible source of the outbreak could not be elucidated.
The pest status of Ralstonia pseudosolanacearum in the Netherlands is officially declared as: Absent, pest eradicated.
Sources
NPPO of the Netherlands (2019-11).