The article presents the results of the identification of fungal diseases of trees and shrubs of the
dendroflora of Aktobe. The most common diseases are powdery mildew, rust, spotting, leaf deformation. 3 types of
fungal diseases were identified in the genus Ulmus, 2 species in the genus мaple (Acer), 4 species in the poplar (Populus), 2 species in the genus ash (Fraxinus), and one each in the genera Salix, Rosa, Malus, Padus, Crataegus. As a
result of the study, an uneven distribution of detected fungi was detected at the objects. There were fewer species of
mushrooms in gardens and parks than in the suburbs. This has led to a decrease in the number of white spots and rust on
the leaves as the urban environment increases. A pattern was found to reduce the number of types of fungal diseases to
the city center.