Ralstonia eradicated in the Netherlands

Eradication is confirmed of the first finding of Ralstonia solanacearum (race 1) in the Netherlands at glasshouse companies producing ornamental Rosa plants for planting for cut flower production. The first finding was triggered following symptoms observed by the grower. The identity of R. solanacearum was confirmed on 11 September 2015, whereby race 1 of R. solanacearum was identified on 23 September 2015.

Trace-back and trace-forward investigations have revealed contamination in total at 15 companies in 2015 and 2016, including five propagation companies. The identity of R. solanacearum was confirmed on 22 September 2016 at the last propagation company. In 2017 at one grower and in 2018 at three growers some plants or irrigation water was still found to be contaminated.

Measures have been taken at these companies aimed at prevention of spread and eradication. After eradication and monitoring in 2019 by testing water samples these companies have been declared free from the bacteria. The possible source of the outbreak has never been found.

Read more in the report released by the Dutch Government.


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