OCCURRENCE AND DISTRIBUTION OF OPHIOSTOMA NOVO-ULMI IN “BIOGRADSKA GORA” NATIONAL PARK

Keywords: Ulmus glabra, Ophiostoma novo-ulmi, symptoms, Montenegro INTRODUCTION Forests of Biogradska Gora in Montenegro developed through natural processes, without anthropogenic disturbances and this kind of forests provide opportunity of studding close to nature management and environntal changes (Curovic et al, 2020; Nagel et al., 2013; Chivulescu et al., 2018). There are multiple drivers influencing trees susceptibility to forest pathogens including invasion by alien pathogens, climate change, emergence of more virulent strains of pathogen, hybridization of fungal species, latent of cryptic pathogens, establishment of new associations between vectors and pathogens and introduction of new forest practices (Ghelardini et al., 2016). [...]there is also increased occurrence of pathogens in domestic forests including impacts of wood decay fungi (Radulović et al., 2020; Karadžić et al., 2020; Radulović et al., 2021) and unusual transmission from different host species (Vemić and Radulović, 2021). [...]clonal researches against DED are now more promising, despite that wych elm (Ulmus glabra) was more susceptible than the field elm (Ulmus minor Miller) (Solla et al., 2005).