Management of Soybean Cyst Nematode and Sudden Death Syndrome with Nematode-Protectant Seed Treatments Across Multiple Environments in Soybean

As soybean (Glycine max) production continues to expand in the United States and Canada, so do pathogens and pests that directly threaten soybean yield potential and economic returns for farmers. One such pathogen is the soybean cyst nematode (SCN; Heterodera glycines). SCN has traditionally been ma...

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Veröffentlicht in:	Plant disease. - 1997. - 108(2024), 6 vom: 23. Juni, Seite 1729-1739
1. Verfasser:	Bissonnette, Kaitlyn M (VerfasserIn)
Weitere Verfasser:	Barizon, Jefferson, Adee, Eric, Ames, Keith A, Becker, Talon, Biggs, Meghan, Bradley, Carl A, Brown, Mariama, Byamukama, Emmanuel, Chilvers, Martin I, Faske, Travis R, Harbach, Chelsea J, Jackson-Ziems, Tamra A, Kandel, Yuba R, Kleczewski, Nathan M, Koehler, Alyssa M, Markell, Samuel G, Mueller, Daren S, Sjarpe, Daniel A, Smith, Damon L, Telenko, Darcy E P, Tenuta, Albert U
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Plant disease
Schlagworte:	Journal Article seed treatments soybean soybean cyst nematode sudden death syndrome

Beschreibung
Zusammenfassung:	As soybean (Glycine max) production continues to expand in the United States and Canada, so do pathogens and pests that directly threaten soybean yield potential and economic returns for farmers. One such pathogen is the soybean cyst nematode (SCN; Heterodera glycines). SCN has traditionally been managed using SCN-resistant cultivars and rotation with nonhost crops, but the interaction of SCN with sudden death syndrome (SDS; caused by Fusarium virguliforme) in the field makes management more difficult. Nematode-protectant seed treatments have become options for SCN and SDS management. The objectives of this study were to evaluate nematode-protectant seed treatments for their effects on (i) early and full season SCN reproduction, (ii) foliar symptoms and root-rot caused by SDS, and (iii) soybean yield across environments accounting for the above factors. Using a standard protocol, field trials were implemented in 13 states and one Canadian province from 2019 to 2021 constituting 51 site-years. Six nematode-protectant seed treatment products were compared with a fungicide + insecticide base treatment and a nontreated check. Initial (at soybean planting) and final (at soybean harvest) SCN egg populations were enumerated, and SCN females were extracted from roots and counted at 30 to 35 days postplanting. Foliar disease index (FDX) and root rot caused by the SDS pathogen were evaluated, and yield data were collected for each plot. No seed treatment offered significant nematode control versus the nontreated check for in-season and full-season nematode response, no matter the initial SCN population or FDX level. Of all treatments, ILEVO (fluopyram) and Saltro (pydiflumetofen) provided more consistent increases in yield over the nontreated check in a broader range of SCN environments, even when FDX level was high
Beschreibung:	Date Completed 21.06.2024 Date Revised 21.06.2024 published: Print-Electronic Citation Status MEDLINE
ISSN:	0191-2917
DOI:	10.1094/PDIS-02-23-0292-RE