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2 2025

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Influence of anthropogenic and climatic factors on the dynamics of penetration and spread of the quarantine pest Tuta absoluta Meyr. in Ukraine

Burdulaniuk Alla, Rozhkova Tetiana, Tatarynova Valentyna, Bakumenko Olha, Yemets Oleksandr, Demenko Viktor, Pivtoraiko Viktor, Spychak Yuriy

Ecological Engineering & Environmental Technology

2025

Vol. 26, iss. 1

280--291

Tuta absoluta Meyr. is an invasive alien species that entered the territory of Ukraine as a result of anthropogenic factors in 2010 with a shipment of infected tomatoes from Turkey. Visual inspection and pheromone traps were used to detect and register the South American tomato moth, which were installed according to the generally accepted methodology. The analysis of the current state of distribution of the South American tomato moth in Ukraine and the world was carried out according to the data of the Department of Phytosanitary Safety in the fields of seed and nursery production of the State Service of Ukraine for Food Safety and Consumer Rights Protection. To achieve the goals, the ways and reasons for penetration were determined T. absoluta to Ukraine. Setting the quarantine status of harmful organisms in Ukraine in 2023 using lists A-1 and A-2 of the "List of regulated harmful organisms". The quarantine status of the American tomato moth has been established in Ukraine in 2023. As the results of study we determined the dynamics of the distribution and number of the pest from 2015 to 2023; and the area of pest infestation in Ukraine and in each infected region; the number of infected regions, districts, cities, settlements, homesteads, farms of all forms of ownership from 2015 to 2023.

Changes in the seed and soil micobiota caused by seed treatment with chemical and biological agents

Spychak Yuriy, Rozhkova Tetiana, Tytova Liudmyla, Bilyuvska Liudmyla, Bakumenko Olha, Tatarynova Valentyna, Yemets Oleksandr, Demenko Viktor, Pivtoraiko Viktor, Burdulaniuk Alla

Ecological Engineering & Environmental Technology

2025

Vol. 26, iss. 1

103--110

This study investigates the impact of chemical and biological treatments on the mycobiota of winter wheat seeds and the fungal composition of the soil. Conducted in 2023-2024 using the winter wheat variety Aliot, the research aimed to determine how different seed treatments affect the microbial populations and the development of wheat seedlings. The experiment was carried out in Sumy, Ukraine, at the Educational Research and Production complex of Sumy National Agrarian University. Chemical treatments tested included Tebuzan Ultra F.C.S., Celest Top 312.5 FS TH, Maxim 025 FS TH, and Record F.C.S., while biological agents included Azotobacterin-K BI, ECOSTERN Trichoderma CS, Bacillus megaterium, and others. Seeds were treated and their mycobiota were analyzed using biological methods to assess changes in fungal and bacterial populations. Additionally, treated seeds were sown to study the effects on the soil microbiota. The results showed that chemical treatments effectively suppressed several fungal species, particularly Alternaria tenuissima, and led to an increase in bacterial colonies within the seeds. However, they also reduced microbial diversity in the soil, which in some cases negatively impacted seedling development. In contrast, biological treatments, while less effective at completely suppressing fungal pathogens, enriched the seed microbiota, particularly increasing Aspergillus oryzae populations, and promoted the growth of beneficial soil microorganisms. Biological agents such as Azotobacterin-K BI and ECOSTERN Trichoderma CS significantly improved seedling length, reaching up to 13.59 cm, compared to chemical treatments which sometimes reduced seedling growth. Overall, the study highlights that while chemical treatments provide immediate protection against pathogens, biological treatments offer long-term benefits by enhancing microbial diversity and promoting healthier plant growth. These findings support the growing trend toward sustainable agriculture, where biological agents can be integrated to reduce chemical inputs and improve environmental safety without compromising yield.