Distribution of dangerous fungus Schizophyllum commune was observed on green plantings and forests in Lithuania. After intensive pruning of trees in V. Kudirka Street, Kaunas, the number of infected trees increased from 2.7 % in 1995 to 45.6 % in 2007. The fungus colonized Tilia cordata and T. platyphyllos, which grew under unfavourable conditions in parks, and Quercus rubra that was introduced in forests. Trees were colonized by the fungus in the areas where they had already suffered from unfavourable growth conditions.
Keywords: Schizophyllum commune, pathogenic fungi, plant pathology, Lithuania.