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Information × Registration Number 0225U005086, (0121U108520) , R & D reports Title Agrobiological bases of winter crop protection systems in the conditions of climate change of the Southern Steppe of Ukraine popup.stage_title Агробіологічні основи систем захисту озимих культур в умовах змін клімату Південного Степу України Head Serhieiev Leonid A., кандидат с.-г. наук Registration Date 25-12-2025 Organization Odesa State Agricultural Experimental Station of the Institute of Climate-Smart Agriculture of the National Academy of Agrarian Sciences of Ukraine popup.description1 To study the influence of agrotechnical and biological methods on the phytosanitary condition of crops; to select and study the biological and economic efficiency of biologicals in the protection system under climate change; to develop an adaptive system of protection of winter crops, focused on cheaper cultivation technology, reduction of pesticide load and leveling of climatic conditions. popup.description2 An adaptive protection system for winter cereal crops has been developed for the conditions of climate change in the Southern Steppe. Monitoring of the entomofauna of the winter wheat agrocenosis was carried out, as a result of which its structural features and dominant groups of phytophagous insects were identified under climate change conditions of the Southern Steppe. It was established that: the use of biological protection methods makes it possible to increase winter wheat grain yield by 7.4–13.0% compared with the variant without their application, without deterioration of grain quality; pre-sowing seed treatment with biopreparations did not affect the density of hortobionts and herpetobionts, unlike chemical preparations, which led to a decrease in the dynamic density of herpetobionts; specific features of biopreparation action were identified: Actofit BT + Bitoxibacillin BT and Boverin BT + Metarhizyn BT affect the pest complex with an emphasis on a significant reduction in aphid populations, while the mixture of Likanicilin BT + Betsymid BT has a greater effect on thrips; the use of bioinsecticides ensures the preservation of the qualitative and quantitative composition of predators, parasites and parasitoids that actively participate in pest population regulation, which is important for the biologization of agriculture; the technical efficiency of the mixture Actofit BT + Bitoxibacillin BT against thrips and aphids was 55.8% and 66.7%, respectively, while the mixture Likanicilin BT + Betsymid BT against aphids reached 83.3%; agronomic efficiency ranged from 0.20 to 0.28 t/ha of preserved yield and for every hryvnia spent on biological protection, an additional 1.75 UAH of net profit was obtained. Product Description popup.authors Svitlana P. Uzhevska Svitlana I. Burykina Viacheslav A. Rudenko Leonid А. Serhieiev Mykola M. Zhuk Valentyna M. Khimich Oksana V. Korienna Nataliia Dzivinska popup.nrat_date 2025-12-25 Close