Abstract
The influence of relief elements and agrolandscape on the features of distribution of quantitative and qualitative composition of pests is considered. It is established that in the slope-hollow agrolandscape the maximum amount of weed seeds is in the upper soil layer 0-10 cm, in the underlying layers their number sharply decreases. The maximum number of weeds was in the zone of the forest belt influence. The infestation on gentle slopes is 1.3-1.8 times higher than on steep slopes. Differences in weather conditions influences on the level of contamination. In wet years, when there is no runoff to the plateau, it is 9-14 times higher than in the dry years. Weather conditions are reflected to a lesser extent on cones of removal, where the contamination changes only 3-4 times. Damage of the main stalks of winter wheat on the southern slope with capsid grain bug in the years of drought is 1.94 times higher compared to plants growing on the plateau, and on lateral ones - by 1.38 times.
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