Abstract. In the Ural region over the past decade, the following changes have occurred in agricultural technologies: an increase in the share of stubble backgrounds for the cultivation of grain crops, which entails special phytosanitary risks. Climate change has been expressed in progressive warming over the past 90 years. The purpose of the study was to establish the effectiveness of the fungicidal protection of wheat against a harmful phytopathogen – brown rust – in modern conditions. Methods of All-Russian institute of plant protection were used. Scientific novelty. The modern distribution of phytopathogens on grain crops in the region was assessed and effective preparations were proposed to protect wheat from leaf rust. Results. Moderate and epiphytotic development of leaf phytopathogens on spring wheat took place in 46 % of years. It is during these years that the use of fungicidal plant protection products is mandatory to maintain wheat yields. Biological efficiency of more than 90 % against the local racial composition of brown leaf rust was provided by chemical preparations, variants with combinations of active ingredients propiconazole + tebuconazole and thiophanate-methyl + epoxiconazole were especially distinguished. The use of chemical fungicidal plant protection in the years of epiphytoties retained 32–45 % yield or 7.0–9.4 c/ha. In years with moderate leaf infections, the increase in productivity averaged 3.1–4.8 c/ha. In years with active dry phenomena in the second half of the growing season, the manifestation of leaf rust was single and had no economic significance. The method of immune protection can be actively used, the set of spring wheat varieties with specified parameters for the Ural region is quite wide.
phytopathogens, areas of distribution, brown rust, grain crops, spring wheat, fungicides, microbiological preparations, productivity, biological efficiency
1. Sanin S. S. Epifitotii bolezney zernovyh kul'tur: teoriya i praktika. Izbrannye trudy, 2012. Moskva: Izdatel'stvo VOSHOD-A (Moskva). 451 s.
2. Kekalo A. Yu., Nemchenko V. V., Zargaryan N. Yu., Filippov A. S., Kozlova T. A. Sovremennyy podhod k voprosu zaschity pshenicy ot bolezney i vrediteley // Zemledelie. 2020. № 5. S. 41-45.
3. Doronin V. G., Ledovskiy E. N., Krivosheeva S. V. Zaschita yarovoy myagkoy pshenicy ot listostebel'nyh bolezney // Zemledelie. 2016. № 6. S. 43-46.
4. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2012 godu i prognoz razvitiya vrednyh ob'ektov v 2013 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2013. 501 s.
5. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2013 godu i prognoz razvitiya vrednyh ob'ektov v 2014 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2014. 656 s.
6. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2014 godu i prognoz razvitiya vrednyh ob'ektov v 2015 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2015. 808 s.
7. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2015 godu i prognoz razvitiya vrednyh ob'ektov v 2016 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2016. 885 s.
8. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2016 godu i prognoz razvitiya vrednyh ob'ektov v 2017 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2017. 881 s.
9. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2017 godu i prognoz razvitiya vrednyh ob'ektov v 2018 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2018. 166 s.
10. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2018 godu i prognoz razvitiya vrednyh ob'ektov v 2019 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2019. 900 s.
11. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2019 godu i prognoz razvitiya vrednyh ob'ektov v 2020 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2020. 897 s.
12. Obzor fitosanitarnogo sostoyaniya posevov sel'skohozyaystvennyh kul'tur v RF v 2020 godu i prognoz razvitiya vrednyh ob'ektov v 2021 godu. Moskva: AO «Pervaya Obrazcovaya tipografiya», 2021. 912 s.
13. Toropova E. Yu., Stecov G. Ya., Chulkina V. A. Epifitotiologiya / Pod red. akademika RASHN A. A. Zhuchenko i akademika MANEB professora V. A. Chulkinoy. Novosibirsk, 2011. 711 s.
14. Koyshibaev M. Osobennosti razvitiya vidov rzhavchiny i septorial'noy pyatnistosti v Severnom Kazahstane // Zaschita i karantin rasteniy. 2017. № 8. S. 21-24.
15. Sistema zaschity rasteniy v resursosberegayuschih tehnologiyah / Pod red. V. V. Nemchenko. Kurtamysh: GUP «Kurtamyshskaya tipografiya», 2011. 525 s.
16. Stepnyh N. V., Nesterova E. V., Zargaryan A. M., Kopylova S. A. Perspektivy rasshireniya posevnyh ploschadey podsolnechnika v Zaural'e // Zemledelie. 2021. № 6. S. 27-33.
17. Koyshibaev M. Bolezni pshenicy. Ankara: Prodovol'stvennaya i sel'skohozyaystvennaya organizaciya OON (FAO), 2018. 366 s.
18. Mal'ceva L. T., Filippova E. A., Bannikova N. Yu., Drobot I. A. Ustoychivost' sortov yarovoy myagkoy pshenicy k listovym boleznyam v usloviyah Zaural'ya // Agrarnyy vestnik Urala. 2017. № 7. S. 28-35. DOI:https://doi.org/10.5281/zenodo.4655986.
19. Gul'tyaeva E. I., Shaydayuk E. L., Shamanin V. P., Ahmetova A. K., Tyunin V. A., Shreyder E. R., Kashina I. V., Eroshenko L. A., Sereda G. A., Morgunov A. I. Geneticheskaya struktura rossiyskih i kazahstanskih populyaciy vozbuditelya buroy rzhavchiny Puccinia triticina Erikss. po virulentnosti i SSR markeram // Sel'skohozyaystvennaya biologiya. 2018. T. 53. № 1. S. 85-95. DOI:https://doi.org/10.15389/agrobiology.2018.1.85rus.
20. Doronin V. G., Ledovskiy V. N., Krivosheev S.V. Preparaty i bakovye smesi protiv listosteblevyh infekciy v posevah yarovoy pshenicy // Vestnik Buryatskoy GSHA im. V. R. Filippova. 2019. № 3 (56). S. 14-26. DOI:https://doi.org/10.34655/bgsha.2019.56.3.00.
21. Grishechkina L. D., Dolzhenko V. I., Kungurceva O. V., Ishkova T. I., Zdrazhevskaya S. D. Razvitie issledovaniy po formirovaniyu sovremennogo assortimenta fungicidov // Agrohimiya. 2020. № 9. S. 32-47. DOI:https://doi.org/10.31857/S0002188120090070.
22. HGCA Wheat disease management guide-2012. Warwickshire Stoneleigh Park: HGCA Publications T 0845 245 0009, 2012. 31 p.
23. Spisok pesticidov i agrohimikatov, razreshennyh k primeneniyu na territorii Rossiyskoy Federacii za 2020 god. Moskva: OOO «Izdatel'stvo Listerra», 2020. 920 s.
24. Spiridonov Yu. Ya., Budynkov N. I., Avtaev R. A., Strizhkov N. I., Suminova N. B., Kritskaya E. E. Razrabotka tehnologii bor'by s vrednymi organizmami s pomosch'yu Sekatora Turba, Lamadora, Fal'kona i drugih preparatov v posevah yarovoy pshenicy // APK Rossii. 2017. T. 24. № 3. S. 636-642.
25. Metodicheskie ukazaniya po registracionnym ispytaniyam fungicidov v sel'skom hozyaystve (pod red. V. I. Dolzhenko). Sankt-Peterburg: Vserossiyskiy NII zaschity rasteniy (VIZR), Minsel'hoz Rossii, 2009. 378 s.
26. Dospehov B. A. Metodika polevogo opyta (s osnovami statisticheskoy obrabotki rezul'tatov issledovaniy). Moskva: Al'yans, 2011. 350 s.
27. Kekalo A. Yu., Nemchenko V. V., Zargaryan N. Yu., Filippov A. S. Fitosanitarnye problemy pshenichnogo polya i effektivnost' sredstv zaschity ot bolezney // Agrohimiya. 2020. № 10. S. 45-50.
28. Mal'ceva L. T., Filippova E. A., Bannikova N. Yu., Berdyugin V. A. Rol' ishodnogo materiala v selekcii rzhavchinoustoychivyh sortov myagkoy yarovoy pshenicy v usloviyah Zaural'ya // Zernovoe hozyaystvo Rossii. 2018. № 5. S. 67-72. DOI:https://doi.org/10.31367/2079-8725-2018-59-5-67-72.
29. Tyunin V. A., Shreyder E. R., Bondarenko N. P. Rezul'taty selekcii pshenicy v Chelyabinskom NIISH v 2015-2017 gg. // APK Rossii. 2018. T. 25. № 1. S. 57-62.
