Clavibacter michiganensis subsp. sepedonicus found in Finland
Potato ring rot caused by Clavibacter michiganensis subsp. sepedonicus (EPPO A2 list) has been found in Finland, during the period October 2003 to February 2004, on four farms producing ware potatoes. The following potato lots were found infested: Solanum tuberosum cv. Matilda (3 lots – 8.82 ha), Van Gogh (1 lot, 3.26 ha), Fambo (1 ha), Asterix and Van Gogh (1 lot, 0.31 ha) and Matilda (1 lot, 0.06 ha).
These findings were made during investigations done to trace back infestations which had been found during market control. These investigations are continuing to identify farms which have used the same seed potato clones which were found infected in the four farms concerned.
Official phytosanitary measures are taken according to EU Directive 93/85/EEC and the Decision of the Ministry of Agriculture and Forestry 100/95.
The situation of Clavibacter michiganensis subsp. sepedonicus in Finland can be described as follows: Present, found on ware potatoes in a limited number of farms, under eradication.
NPPO of Finland, 2004-03.