Pests, distributed on the Republic of Moldova territory, annually, depending on climatic conditions, can cause significant damage to agricultural crops, amounting to about 25-30% of the expected yield. The purpose of our research was to evaluate the effectiveness of nesting devices, located in various biotopes, for wintering and attracting entomophages. The most significant potential biological plant protection agents, belong to the orders Neuroptera, Coleoptera, Hymenoptera (parasites and predators). The percentage of lacewing species was determined - the species Chrysopa carnea (86,4%) was dominant. The main factors, influencing the number of entomophages, attracted to wintering with the help of nesting devices, were established types of filler materials and location height.