Kurtsev V. Sucking pests of winter wheat and regulation of their size in North steppe of Ukraine

Object of researches. Sucking pests of winter wheat: bread bugs, wheat thrips, leaf cereals plant-lice, cicadas and their entomophages, insecticides. The purpose of researches was to expose the most harmful species of sucking pests of winter wheat, study of features of biology and basing of methods of regulation of their number in North Steppe of Ukraine. Methods of researches. The standard methods of faunal researches in an entomology and the censuring of hexapods, population ecology, protection of plants - field and laboratory researches. Scientific novelty of the results which were received. It was specified the specific structure of entomofauna of agrobiocenosis of winter wheat in North Steppe of Ukraine. There were discovered 55 types of insects-phytophages out of 21 families. It was proved that during the last years the most numerous and harmful is the group of sucking insects: cereals plant-lice, cicadas, bread bugs, wheat thrips which demands the improvement of system of protection of crops from them. It was studied the influence of abiotic and agrotechnical factors on seasonal dynamics of number of these phytophages. There were based the terms of using of pesticides and proved the advantage of employment of superlight aviation in comparison with land sprayers. Sphere of application - an agriculture.