The results of field research from 2019 to 2023 are presented in the given article. The purpose of the research was to determine the species composition, distribution, density and habitat attachment of insect populations of soybean pests in Amur region. In the districts of Amur region cultivating soybeans, 37 species of insects belonging to 20 families from 6 orders have been recorded. Among the registered species, representatives of the order Lepidoptera dominate – 18 species (48.6%). Maps of the distribution of soybean pest species in the region have been prepared, outbreaks of which were noted during field research: Leguminivora glycinivorella, Pyrrhia umbra and Heliothis adaucta, as well as the Gryllotalpa orientalis. Mathematical processing of local species lists according region was carried out using the Jaccard similarity coefficient, as well as additional verification of calculations using the method of J. Imbrie and N. Kipp. Based on the data obtained, clustering of the studied territories was carried out according to the composition of the entomofauna. A high degree of association of insect pests with habitats was revealed. It was found that terrain, phytocenotic and edaphic factors had a greater influence on the density and species composition of pests than local weather and climatic conditions. Species distributed mainly in the southern regions often reached the northern border of soybean cultivation along river beds. At the same time, boreal species were not recorded in soybean agrocenoses in the south of the region. General recommendations are proposed for pest control and reducing damage from their activity in different soybean cultivation zones, taking into account local conditions.

Kuzmin Alexander A., Anisimov Nikolay S.

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