Invasive species and timber import from Russia. Review of current knowledge by Nordic experts

arbre pour bois de construction asia asie baltic states bois champignon comercio internacional commerce international enfermedades fungosas escandinavia fungal diseases fungi hongos importaciones importation imports insecte nuisible international trade introduced varieties land varieties madera maladie fongique nematoda pathogens pest insects pests of plants plagas de plantas ravageur des plantes riesgo risk risque russian federation scandinavia scandinavie tendance tendencias timber trees trends variedades naturalizadas wood