An important challenge for the effective development of animal husbandry in Russia is mitigating the damage caused by blood-feeding dipteran insects, which transmit pathogens responsible for various dangerous diseases affecting both humans and animals. It is also necessary to develop comprehensive strategies for protecting livestock from these pests. The present study was conducted to safeguard beef cattle from gnats and gadflies in the Southern Tyumen region. This article presents extensive observations on the seasonal patterns of blood-sucking dipterans, known as “gnats” (including horseflies, mosquitoes, midges, and biting midges), as well as gadflies, in the southern Tyumen region. The authors have identified the peak flight periods of these insects for each natural and climatic zone in the area, highlighting when protective measures for cattle are most necessary. In the southern taiga subzones and mixed aspen-birch forests, such measures should be carried out from late May to the end of August, while in the forest-steppe zone, they should be carried out from early June to the first 5 days of September.
