Species composition of aphids captured in the forest park of the Sablinsky Landmark (Leningrad region) in the conditions of the summer of 2025

Abstract

During the growing season of 2025, the species composition of aphids on trees and shrubs, as well as plants of the meadow cenosis of the forest park of the Sablinsky Landmark (Leningrad Region), was monitored. The observations were carried out in the third decade of May, I-II decades of June, I decade of July using visual assessment, as well as mowing with an entomological net. A total of 27 species have been identified; 14 of them are phytophagous, living on tree species, 7 – on shrubs, 6 – on plants of meadow cenosis. Due to the high temperatures in March, early hatching of the fundatrix female larvae was observed in some species in the region. In May, adult parthenogenetic females appeared, and 10 species were identified. The largest number of insects was recorded in the first half of June. The vast majority of aphid species living on trees are monoecious. Two identified species live on coniferous trees, seven on broad–leaved trees. Such species as Anoecia corni F., Ropalosiphum padi L., Cavariella aegopodii Scop., Aphis fabae Scop., Rhopalosiphum insertum Walk., Brachycaudus helichrysi Kalt. have several host-plants, they are characterized by heteresis. The largest number of individuals was observed in the following species: Euceraphis betulae gr. sp., Macrosiphum rosae L., A. fabae.