Entomological diagnostics of ornamental shrubs in urban areas

The article presents monitoring studies of the spread of harmful objects in plantings of ornamental crops of various families (Berberidaceae, Hydrangeaceae, Rosaceae, Caprifoliaceae, Oleaceae, Tamaricaceae, Adoxaceae, Cornaceae, Fabaceae, Scrophulariaceae, Rhamnaceae, Celastraceae, Buxaceae, Sapindaceae) in urban plantations. In recent years, intensive urban development has been taking place, districts and neighborhoods are being built, and landscaping of these territories is of particular importance. During the construction of new neighborhoods, landscaping elements are already laid out at the design stage, and an assortment is selected to create various plant compositions that should be highly decorative, resistant to a complex of abiotic and biotic factors, and unpretentious to anthropogenic influences in an urban ecological system that is a complex network of interactions between plants, animals, microorganisms, and humans. in urban conditions. The most common omnivorous and specialized pests of ornamental shrubs in the conditions of the Central Chernozem region have been identified. Phytophages belonging to 27 families and 12 orders have been identified. The observations made it possible to establish the absence of pest damage in the conditions of shrubs of the genera: Elder (Sambucus), Diervilla (Diervilla), Droc (Genista), Buckthorn (Frangula), Lapchatka (Potentilla), Mahonia (Mahonia), Myricaria (Myricaria), Pemphigus (Physocarpus), Snowberry (Symphoricarpos), Chaenomeles (Chaenomeles). Throughout the entire growing season, the following genera are most damaged by omnivorous and specialized pests: Acacia (Caragana), Barbary (Berberis), Birch bark (Euonymus), Privet (Ligustrum), Honeysuckle (Lonicera), Rose (Rosa), Lilac (Syringa), and Cowberry (Philadelphus). The most intensively damaged ornamental plants were harmful organisms belonging to the orders Homoptera, Lepidoptera and Coleoptera. The largest number of phytophages was observed on rose bushes (20 species) (roseate cicada, acacia pseudococcus, roseate sawfly, roseate nutcracker, shaggy olenka, golden bronze, roseate leaflet), lilacs (10 species) (apple comma-shaped scutula, lilac moth moth, roseate cicada, leafcutter bee, acacia pseudococcus, lilac bud mite), chubushniki (6 species) (apple scutula, leafy green weevil), privet (5 species) (privet moth), hawthorn (5 species) (apple scutula, apple copperhead).