TO THE FAUNA OF GALL-FORMING ARTHROPODS IN VLADIKAVKAZ

The regional assessment of the fauna of gall-forming arthropods on the vegetation of urban ecosystems in North Ossetia indicates a significant distribution of pests. Ticks with the prevalence of 62.5% dominate in the structure of phytophagans of the studied plants in Vladikavkaz. The proportion of gall-forming insects is 37.5%. Of the 25 species of studied plants, 8 are susceptible to arthropod attack. Gall-forming insects infect laminas of two types of trees and one type of shrub. Thus, the willow gall sawfly (Pontania proxima) was identified on the goat willow (Salix caprea), the elm-grass root aphid (Tetraneura ulmi) on the elm rough (Ulmus glabra), and the red currant aphid (Cryptomyzus ribis) on the golden currant (Ribes aureum). Gallforming mites inhabiting laminas of four types of trees and one type of shrub. Walnut leaf gall mite (Eriophyes tristriatus) was detected on the walnut (Juglans regia), the grape leaf rust mite (Calepitrimerus vitis) on the common grape (Vitis vinifera), the pear blister mite (Eriophyes pyri) on the pear Nart (Pyrus "Nart"), the maple gall mite (Aceria macrorhyncha) on the sycamore maple (Acer pseudoplatanus), and the red nail gall mite (Eriophyes tiliae) on the Caucasian linden (Tilia caucasica).