Abstract
In order to effectively manipulate the behavior of predators and parasitoids in the field, luring them into crops earlier and with greater density, we used the following methods: overseeding aromatic plants (omnivorous lacewings are attracted to a number of plant species, which they use to enhance reproduction, nutrition or rest); attractants, which increase the effectiveness of biological management by raising the level of predation or parasitism; nesting devices providing monitoring and safe wintering of Chrysopa entomophages. In the orchard nesting devices 8,1 times more Chrysopa individuals remained for the wintering, than in the control plot of the Botanical Garden. Ch. carnea was dominant among the species that overwintered in nesting devices. The maximum number of Chrysopa individuals, overwintered in the nesting devices, placed at a distance of 5-20 meters from attractant baits (16,7%; 22,2%; 27,8%). A significant number of entomophages was accumulated in the nesting devices in the orchard plot with oversowing of nectariferous crops (11,1%).