The article presents the results of phytosanitary monitoring of soybean production crops in the conditions of Primorsky Krai. Data on the prevalence and degree of development of the main fungal diseases in four agro-climatic zones of the region are shown: steppe, forest-steppe, northern and southern taiga, for three years of route inspections (2019–2021) on an area of 81 761.9 hectares. Disease records were carried out in the phases of full germination, the beginning of flowering, filling of seeds on various vegetative organs of plants and soybean roots. Root rot of complex etiology was registered in all zones. Their development was of epiphytotic nature annually and reached an average of 20.3–36.3 % over the years. Various types of pathogenic fungi were isolated from the affected roots. The predominance of fungi of the genus Fusarium spp. was established, the frequency of occurrence of which on soybean roots averaged 9.4–10 % along the edge. Three-year surveys showed that septoria prevailed everywhere in all zones. Its prevalence on average reached 97.4 %, with an intensity of development of 29.2 %. Also, peronosporosis and cercosporosis were noted annually on soybean crops. The degree of manifestation of these pathogens was intense. The level of development of peronosporosis and cercosporosis averaged 27 and32 %, respectively. In some years of research, ascochitosis and purple cercosporosis were found in the form of single spots. 226 batches of soybean seeds provided by seed control laboratories of Primorsky Krai districts were analyzed. The conducted phytopathological examination revealed significant infection with pathogens such as fusarium and bacteriosis.

Vyborova Tatiana A., Bezmutko Svetlana V.

1. Bezmutko S. V., Kozhevnikova I. A., Cherepanova T. A. Analiz rasprostranennosti i razvitiya osnovnykh gribnykh boleznei soi v Primorskom krae [Analysis of the prevalence and development of major mushroom diseases of soy in Primorsky Krai]. Dal’nevostochnyi agrarnyi vestnik. – Far Eastern Agrarian Herald, 2019; 4 (52): 9–15 (in Russ.).
2. Gerasimova L. Soya v rastushchem trende [Soybean in a growing trende]. Zashchita rastenii. – Plant protection, 2019; 12: 289 (in Russ.).
3. EMISS: Edinaya mezhvedomstvennaya informacionno-statisticheskaya sistema [EMISS: Unified Interdepartmental Information and Statistical System]. fedstat.ru Retrieved from https://www/fedstat.ru (Accessed data 12 October 2021) (in Russ.).
4. Korsakov N. I., Ovchinnikova A. N., Mizeva V. I. Izuchenie ustoichivosti soi k gribnym boleznyam [The study of soybean resistance to fungal diseases], Leningrad, Vserossijskij institut rastenievodstva imeni N. I. Vavilova, 1979, 46 p. (in Russ.).
5. Krivoshlykov K. M., Roshchina E. Yu. Kozlova S. A. Analiz sostoyaniya i razvitiya proizvodstva soi v mire i v Rossii [Analysis of state and development of soybean production in the world and Russia]. Maslichnye kul’tury. Nauchno-texnicheskij byullyuten’ Vserossijskogo nauchno-issledovatel'skogo instituta maslichnyh kul'tur imeni V. S. Pustovojta. – Oilseeds. Scientific and Technical bulletin of the All-Russian Scientific Research Institute of Oilseeds named after V. S. Pustovoit, 2016; 3 (167): 64–69 (in Russ.).
6. Kuchkorov A. M., Avlashev A. K., Imonov Ch. M. Rezul’taty izucheniya boleznei soi v usloviyakh Uzbekistana [Results of studying soybean diseases in the conditions of Uzbekistan]. Universum: khimiya i biologiya. – Universum: chemistry and biology, 2020; 10 (76). Retrieved from https://7universum.com/ru/natyr/archive/item/10738 (Accessed 3 October 2021) (in Russ.).
7. Zaostrovnykh V. I., Kadurov A. A., Dubovitskaya L. K., Ryazannova O. A. Monitoring vidovogo sostava boleznei soi v razlichnykh zonakh soeseyaniya [Monitoring of the species composition of soybean diseases in various soybean zones]. Dal’nevostochnyi agrarnyi vestnik. –Far Eastern Agrarian Herald, 2018; 4 (48): 51–67 (in Russ.).
8. Novikova I. I. Polifunktsional'nye biopreparaty dlya fitosanitarnoi optimizatsii agroekosistem v biologicheskom zemledelii [Polyfunctional biological products for phytosanitary optimization of agroecosystems in biological agriculture]. Tekhnologii i tekhnicheskie sredstva mekhanizirovannogo proizvodstva produktsii rastenievodstva i zhivotnovodstva. – Technologies and technical means of mechanization of crop and livestock production, 2019; 2 (99): 183–194 (in Russ.).
9. Saenko G. M. Fitosanitarnyi monitoring osnovnykh boleznei soi v Krasnodarskom krae [Phitosanitary monitoring of the basic diseases on soybean in the Krasnodar region]. Maslichnye kul’tury. – Oilseeds, 2019; 3 (179): 106–113 (in Russ.).
10. Saenko G. M., Bushneva N. A. Sovmestimost' fungitsidnykh protravitelei soi s inokulyantami [Compatibility of fungicide dressers and inoculators on soybean]. Maslichnye kul’tury. – Oilseeds, 2018; 3 (175): 124–127 (in Russ.).
11. Saenko G. M., Mustafina M. A. Fitosanitarnoe obsledovanie soi v Tsentral’nom Chernozem’e [Phytosanitary survey of soybean in the central Chernozem region]. Izvestiya Nizhnevolzhskogo agrouniversitetskogo kompleksa. – News of the Nizhnevolzhsky Agrarian University Complex, 2021; 2 (62): 175–185 (in Russ.).
12. Sinegovskii M. O., Kuz’min A. A. Sostoyanie, perspektivy i fitosanitarnye riski proizvodstva soi [State, prospects and phytosanitary risks of soybean production]. Zashchita i karantin rastenii. – Plant protection and quarantine, 2020; 10: 7–11 (in Russ.).
13. Chumakov A. E. Osnovnye metody fitopatologicheskikh issledovanii [The main methods of phytopathological studies], Leningrad, Kolos, 1974, 191 p. (in Russ.).
14. James B. Sinclair. Compendium of Soybean Diseases, Saint Paul, APS Press, 1982, 104 p.
15. Karlekara A., Sealb A. SoyNet: Soybean leaf diseases classification. Computers and Electronics in Agriculture, 2020; 172: 105–342.