Outbreaks of Leptinotarsa decemlineata in Finland
In Finland, outbreaks of Leptinotarsa decemlineata (Coleoptera: Chrysomelidae) have been reported by the NPPO during summer 2011. The pest has been found in 11 potato fields (5 farms and 6 home gardens) in the communes of Aura, Joutsa, Kouvola, Nousiainen, Nummi-Pusula, Porvoo, Somero, Sysmä and Tarvasjoki. Because of the large number of outbreaks, it is assumed that the beetles have been carried to Finland with air currents from areas where the pest is known to occur. Eradication measures have been taken (pesticide treatments, burning of vegetation and soil when necessary). Surveys will be carried out during the next two potato-growing seasons to verify the absence of the pest.
The pest status of Leptinotarsa decemlineata in Finland is officially declared as: Present, under eradication.
NPPO of Finland (2011-07).