The application efficiency of organic fungicides against soybean diseases in the central zone of the Krasnodar region of the Russian Federation

Abstract

Diseases are one of the main factors limiting the receiving of high yields of soybean. The use of biopreparations for plant protection will result in successful disease control and improve the quality of products. In 2018-2020, at V.S. Pustovoit All-Russian Research Institute of Oil Crops (Krasnodar), we studied the application effectiveness of biopreparations under the trademarks of BSka-3 with the active ingredients Trichoderma veride, Pseudomonas koreensis, Bacillus subtilis and BFTIM with the active ingredient Bacillus amyloliquefaciens against soybean diseases. We applied organic fungicides for seed treatment and on vegetative plants at the budding stage. The variants BSka-3 G + BFTIM G (62 %) and BSka-3 Zh + BFTIM Zh (50 %) showed the highest biological effectiveness against purple Cercospora blight, and the variant BSka-3 E + BFTIM E showed 66 % and 52 % of effectiveness against pustular and angular spot diseases. The biological effectiveness of Pyraclostrobin, EC against purple Cercospora blight, pustular and angular spot diseases was the lowest – 21, 12, and 10 %, respectively. We observed the best economic efficiency in case of application of BSka-3 E + BFTIM G – 2.31 t/ha.

Breeding for disease resistance in soybean: a global perspective

“…Genetic resistance is the most efficient strategy to control SMV (Gunduz et al 2004). To date, four independent loci for SMV resistance, Rsv1, Rsv3, Rsv4, and Rsv5 have been identified (Kiihl and Hartwig 1979;Buzzell and Tu 1984;Buss et al 1997;Li et al 2010c;Klepadlo et al 2017) although most of the modern commercial cultivars are susceptible to SMV, particularly to more virulent strains (Table 17) (Zheng et al 2005a, b;Shakiba et al 2012a).…”

“…Rsv4 was mapped on Chr. 2 (MLG D1b) and confers complete resistance to all SVM strains (Buss et al 1997;Ma et al 2002;Gunduz et al 2004). A total of four alleles have been identified from 'V94-5152', PI 88,788, and 'Beeson' (Buss et al 1997;Ma et al 2002;Gunduz et al 2004;Shakiba et al 2013).…”

“…2 (MLG D1b) and confers complete resistance to all SVM strains (Buss et al 1997;Ma et al 2002;Gunduz et al 2004). A total of four alleles have been identified from 'V94-5152', PI 88,788, and 'Beeson' (Buss et al 1997;Ma et al 2002;Gunduz et al 2004;Shakiba et al 2013). Since the reaction (hypersensitive reaction) observed in Rsv1 and Rsv3 is different from that in Rsv4, it is suggested that Rsv4 has unique molecular defense mechanisms (Ma et al 2002;Gunduz et al 2004;Saghai Maroof et al 2008).…”

“…glycines), and bacterial blight (Pseudomonas syringae pv. glycinea Coerper) (Bushnev et al 2020;Sinegovskaya 2021). In Ukraine, SMV is a major concern which often infects together with bean yellow mosaic virus (BYMV), and Alfalfa mosaic virus (AMV) in the right-bank region (Kyrychennko et al 2012;Mishchenko et al 2017), while in the Forest-Steppe region, Alternaria leaf spot, downy mildew, Fusarium wilt and root rot, brown spot, and bacterial blight are the most prevalent soybean diseases (Sergiienko et al 2021).…”