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Information × Registration Number 0225U004617, (0124U001275) , R & D reports Title To investigate the effectiveness of a biological preparation in the potato protection system against stem nematode in the conditions of climatic changes of the Southern Steppe popup.stage_title Дослідити ефективність біологічного препарату в системі захисту картоплі проти стеблової нематоди в умовах кліматичних змін Південного Степу Head Burykina Svitlana I., Кандидат сільськогосподарських наук Registration Date 15-12-2025 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 effectiveness of a biological preparation in the potato protection system against stem nematode in the conditions of climatic changes of the Southern Steppe popup.description2 Findings: The biopreparation affects the structural components of potato yield, namely by increasing the individual productivity of a potato plant: the number of tubers increased by 35–45% and their total mass by 20.4–32.1%; tuber infection was reduced by 2.5–5.0 times; for the first time, it has been shown that the potato tuber nematode is able to persist in the soil during the autumn–winter period; therefore, soil should be considered an additional source of invasion of D. destructor, which had not been regarded as such prior to this study; a method for testing the efficacy of Nematofagin BT against phytopathogenic potato nematodes has been developed, involving treatment of cut tubers, which increases the area accessible to the pests; analysis is recommended after treatment with a 3% solution of the biopreparation with an exposure time of 5–12 hours, assessed after 3–7 days; under laboratory conditions, Nematofagin BT exhibited nematicidal activity against the potato stem nematode at a level of 60–70%; an optimal method for using the biopreparation Nematofagin BT in the potato protection system against phytonematodes has been developed, which includes pre-planting treatment of planting material by soaking in a 3% solution or spraying with a 5% solution, as well as treatments at specific growth stages; this approach negatively affects the nematode complex, particularly P. nanus and D. destructor, with an efficacy of 63%, and Pr. pratensis with 100% efficacy. The advantage of the developed method is that, unlike existing approaches, it provides biological control of a complex of phytonematodes with an emphasis on treatment of planting material and foliar spraying, aimed at increasing potato yield and preventing the development of diseases caused by these pests during tuber storage. The method was tested in four private farms; based on the results of field trials, official validation reports were prepared. Scientific and practical recommendations have been developed. Product Description popup.authors Svitlana P. Uzhevska Nikishicheva Katerhyna Sergiivna Svitlana I. Burykina Vyacheslav Rudenko Mikola Zhuk Valentyna Khimich Oksana Korienna popup.nrat_date 2025-12-15 Close