The role of fungus Hymenoscyphus fraxineus (T. Kowalski) Baral, Queloz & Hosoya in ash dieback (Fraxinus spp.) in the Republic of Croatia

Common ash (Fraxinus excelsior L.) and narrow–leaved ash (Fraxinus angustifolia Vahl), economically and ecologically very important species in mountain and lowland forests of Croatia, have recently developed more prominent decline symptoms. Specific mechanisms which cause this phenomenon are not yet identified, however the newly discovered fungal pathogen Hymenoscyphus fraxineus represents the hig…