EPPO Global Database

EPPO Reporting Service no. 01 - 2017 Num. article: 2017/017

Updated situation of Ralstonia solanacearum in the Netherlands

The NPPO of the Netherlands recently informed the EPPO Secretariat of the current situation of Ralstonia solanacearum (EPPO A2 List) on its territory.

  • Solanum melongena plants for fruit production: successful eradication
In June 2016, R. solanacearum (race 3) was detected in a glasshouse producing fruit of
S. melongena (aubergine) located in the municipality of Westland, province of South Holland (see EPPO RS 2016/136). All infected plants have been destroyed, as well as the associated growing media. The glasshouse has been disinfected and the soil steamed. In November 2016, the Dutch NPPO officially declared that this outbreak has been eradicated.

  • Ornamental Anthurium plants: case closed
In August 2015, R. solanacearum (race 1) was detected in a glasshouse producing cut flowers of Anthurium spp. plants (cvs.’Midori’, ‘Pistache’ and ‘Fire’) located in the municipality of Bleiswijk (see EPPO RS 2015/164). All Anthurium plants have been destroyed and the glasshouse disinfected. The grower has decided to grow another crop. The Dutch NPPO considers that this case is now closed.

  • Ornamental Rosa plants for planting for cut flower production: eradication continues
In September and October 2015, R. solanacearum (race 1) was found in glasshouse companies producing Rosa plants for planting, intended to be used subsequently for cut flower production (see EPPO RS 2015/182). In 2015 and 2016, tracing-back and tracing-forward investigations revealed the presence of R. solanacearum in 15 companies (including 5 propagation companies). On all these production sites, all affected lots have been destroyed. Cut flower lots which tested negative for R. solanacearum were allowed to be traded. After having taken eradication measures in all companies concerned, sampling and testing of water samples showed that some companies were now free from the bacterium. Eradication is continuing, as well as investigations to determine the possible source of the disease on Rosa in the Netherlands.

The pest status of Ralstonia solanacearum in the Netherlands is officially declared as:
in potato production chain: transient, incidental findings, under eradication;
in natural environment (surface water): present;
in Solanum melongena plants: eradicated.
in Rosa plants: transient: actionable found on Rosa plants for planting, under eradication.


NPPO of the Netherlands (2016-11, 2016-12).