(2)According to the information provided by the Slovenian competent authority, the action was necessary because of a danger to the environment and to animal health that could not be contained by other means. The biocidal product Pyblast EW is used in the areas of Lopata and Medlog for the eradication of red swamp crayfish (Procambarus clarkii) along the Črna mlaka watercourse. Procambarus clarkii is included in the list of invasive alien species of Union concern pursuant to Regulation (EU) No 1143/2014 of the European Parliament and of the Councilnote and poses a serious threat to aquatic ecosystems, biodiversity and native crayfish populations. In accordance with Article 17 of that Regulation, Member States are required to take effective eradication measures at an early stage of invasion.
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