THE MOST IMPORTANT FUNGAL PATHOGENS OF WOODY AND TREE-LIKE PLANTS IN THE PARK «RIVIERA» (SOCHI)

According to the results of the study of fungal phytopathogens on woody (trees and shrubs) and tree-like plants in the park «Riviera» (Sochi) in 2018–2020, 145 phytopathogenic fungi were identified, including mainly micromycetes that belong to Ascomycota (133 species, 77.9 %). The recorded plant pathogenic fungi caused 15 types of diseases in their woody and tree-like host plants; pathogens of leaf spots, powdery mildew and anthracnose prevailed in the total number of species. Based on the disease incidence, the disease severity and the regularity of the pathologies caused by each plant pathogen, and taking into account the decrease in the decorative effect of the affected plants, the most important pathogens of woody and tree-like plants should be the causative agents of monilial blight and brown fruit rot of stone fruit crops (Monilinia fructicola) and shot hole disease of stone fruit (Wilsonomyces carpophilus); some causative agents of trunk rots – Chondrostereum purpureum, Pappia fissilis, Phellinus igniarius, Ph. pomaceus, and especially the butt rot pathogen Ganoderma applanatum; some microfungi that cause anthracnoses (Apognomonia veneta, Diaporthe aucubae), leaf spots (Diplocarpon rosae, Coniothyrium palmarum, Phyllosticta sphaeropsoidea) and scabs (Fusicladium eriobotryae, F. levieri, Venturia tremulae var. populi-albae). The decorative value of many plants was significantly reduced by some powdery mildews (Erysiphe alphitoides, E. australiana, E. corylacearum, E. euonymiсola, E. platani, Podosphaera pannosa, P. spiraeae) and rust fungi (Melampsora cf. coleosporioides, M. hypericorum, Uromyces laburni).