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Soil excavation results determined the structure of elater dominance in grain crops and corn in Belarus. Three click beetle species were dominant: Agriotes sputator L., A. lineatus L., and A. obscurus L. A high efficiency of click beetle sexual pheromone was obtained. The pheromone was synthesised at the Organic Chemistry Department of the Belarussian State University. Click beetle monitoring with the help of pheromone traps, and a technique for defining wireworm population density, and their harmfulness forecast on the caught beetles is developed. The economic thresholds of wireworm harmfulness in agriculture were calculated. Beetle numbers were defined according to those caught in pheromone traps and the beetle numbers corresponded to larvae threshold indicators. An assortment of effective insecticidal seed dressers against the given pests was formed.
As a result of the research carried out in 1983-1993 (with consideration for the results of the research conducted before WWII by German entomologists) in the Bielinek forest-steppe reserve 57 species of click beetles were found (Elateridae, Eucnemidae, Throscidae). The zoogeographical and ecological characteristics of click beetles fauna of the area was presented. As a result a high share of species related to Submeridian-Atlantic climate was found in the reserve as well as the species which in terms of range are included in the Ponto-Mediterranean and Mediterranean elements. A hypothesis on the origin of the click beetles fauna of the area was presented. It was stated that the species that are climatic relicts (late Pleistocene and previous periods of Holocene) are very poorly represented in the fauna (2 species related to forest-steppe habitats: Porthmidius austriacus and Melanotus crassicollis). The species that are habitat relicts of natural forests (e.g. Lacon querceus, Limoniscus violaceus, Stenagostus rhombeus, Hypoganus inunctus, Ischnodes sanguinicollis, Brachygonus dubius, Ampedus cardinalis, Elater ferrugineus, Isorhipis melasoides) are much more numerous. Taking the above into consideration it was found that the fauna of click beetles of the Bielinek reserve has a specific, unique character and in this respect the reserve can be counted among the most valuable refugia of unique fauna in Poland, and probably also in Europe.
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