In all of these cases, the problem relates to sources of infection: water primrose, water milfoil, Japanese knotweed, etc. in wet areas, and wild cane, buddleia, box elder, Japanese varnish tree, etc. more generally.
I samtliga fall handlar det om smitthärdar: Ludwigia grandiflora, Myriophyllum, parkslide osv. i våtmarker, och Gynerium, Buddleja, asklönn, lacksumak osv. mer allmänt.EurLex-2 EurLex-2