Abstract
During the period 2009–2010 a monitoring of entomofauna was performed in environmentally justified crop rotation including rotation of legumes (beans, soybean) and cereals (wheat, wintering oats) in two variants–control (without fertilization), and foliar fertilization by Humustim humate fertilizer. Conventional entomological methods were used for determination of species and population density of harmful plants and their entomophaga. The results were processed by crops. Differences in species composition of entomofauna were found in variants fertilized by Humustim, compared to those without fertilization. In no one of the four crops pests in density over Economic Threshold Level (ETL) were detected. Diversity of entomophaga was explained via the favorable ecological environmental conditions and namely by the presence of the trophic factor and the lack of chemical treatments with insecticides.
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