Authors:
A. I. BARASHKOVA, candidate of biological sciences, senior research associate,
A. D. RESHETNIKOV, doctor of veterinary sciences, professor, chief research associate, head of the laboratory,
YAKUTSK RESEARCH INSTITUTE OF AGRICULTURE (23/1 Bestuzheva-Marlinskogo Str., 677001, Yakutsk)
Abstract. The purpose of research is the study of the traps effectiveness in the fight against horse flies (Diptera, Tabanidae) on alas pastures for farm animals. Stationary observations and research were carried out in the period of 2002–2015 in the subzone of middle taiga forest zone of Yakutia. For the experiment, it was chosen two alas pastures, one of which was control, while the other one was experimental. Both pastures on the perimeter were surrounded by a forest. On the control and experimental alas pastures fed the same herd of horses during the season (15 heads). The experimental pasture was at a distance of about 800 m from the control one. The experiment lasted from 29 June (the date of installation of the traps) to 18 July (date of withdrawal of the traps). Traps for the extermination of flies have been established on the experimental pasture – 8 pieces (one is on ac-count) over an area of about 19 hectares (alas diameter is about 500 m) on the perimeter of alas at a distance of 75–100 meters from the forest edges, according to the guidelines. The distance between traps was 100–150 m. For the destruction of flies in the traps was used Veterin (20 %) of 0.05 % concentration, which is impregnated with an emulsion burlap (30 × 60 cm), is placed at the top of the trap under the canopy. Flow rate was 150 ml of emulsion per trap. Burlap treatment was carried out once every 10 days. Traps were set in the control alas pasture on accounting days. Accountings in the experimental and control pastures were conducted on 30 of June, and 2, 6, 10, 14 and 17 of July. Evaluation of the traps effectiveness in the pasture (alas) was carried out by changing the number of flies in the experiment compared to the control, which was studied by accounting spherical traps, with one installed on both pastures. Action of traps impacted from the first days of their establishment. By the end of the experiment the number of flies reduced by 53.2 %, or almost by 2 times. The effectiveness of the traps varied from 26.9 % to 53.2 %.
Keywords: horseflies, trap, capture, destruction, efficiency, horse, shoal, alas, pasture.
