Abstract
Goal. Development analysis of harmful organisms in cereal crops, to determine the economic feasibility of applying plant protection measures.
 Methods. To assess the phytosanitary state of crops, and its dynamic changes, the following are used: — the results of phytosanitary monitoring of crops (according to generally accepted methods), which were carried out directly by the staff of the forecast laboratory of the Institute of Plant Protection of NAAS; — current reports of researchers from other laboratories of the Institute of Plant Protection of NAAS from the places of business trips; — materials of decadal reports of regional plant protection stations, as well as signaling and forecasting points; — information on the phytosanitary situation from regional state research stations and institutes of NAAS.
 Results. A study of the phytosanitary state of cereal crops on the territory of Ukraine was carried out, the dominant species of pests were identified, regarding the of the phytosanitary state in the conditions of the year, and a long-term (annual) forecast of the development of pests for the next year was drawn up, based on the appropriate analysis of the data obtained.
 Conclusions. In recent years, climate change in Ukraine has manifested itself through an increase in the average annual temperature, and an increase in the sum of effective temperatures. A decrease in the zone of sufficient soil moisture was noted, its line shifted to the north. Under the influence of abiotic factors, pests constantly change the boundaries of their habitat and zones of damage, therefore reliable protection of crops is impossible under constant gradually monitoring, constant clarification of the species composition of phytophages, and phytosanitary forecast. Improved methodological approaches for assessing the phytosanitary state of agrocenoses and the promptness of obtaining relevant data will allow agricultural producers to make timely decisions on the economic feasibility of using certain plant protection products.
Highlights
Різкі коливання чисельності у популяціях різних видів тварин, а особливо комах, як правило, зумовлені впливом екологічних чинників різної природи, серед яких погодні та кліматичні зміни займають не останнє місце [1—8]
Under the influence of abiotic factors, pests constantly change the boundaries of their habitat and zones of damage, reliable protection of crops is impossible under constant gradually monitoring, constant clarification of the species composition of phytophages, and phytosanitary forecast
Summary
Різкі коливання чисельності у популяціях різних видів тварин, а особливо комах, як правило, зумовлені впливом екологічних чинників різної природи, серед яких погодні та кліматичні зміни займають не останнє місце [1—8]. Заселення зернових колосових за таких умов розтягнуто у часі (у південних областях з першої декади квітня, а подекуди навіть до початку колосіння пшениці озимої), що в трофічному плані не сприяє активному розвитку популяції хлібних клопів, та значному зростанню їхньої чисельності.
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