USWBSI Abstract Viewer

2022 National Fusarium Head Blight Forum


FHB Management (MGMT)

Invited Presenter

MGMT Coordinated Project Overview and Kansas Perspective

Authors & Affiliations:

Kelsey Andersen Onofre1, Erick De Wolf1, Wanderson Bucker Moraes2, and Pierce A. Paul2
1. Kansas State University, Department of Plant Pathology, Manhattan, Kansas
2. The Ohio State University, Department of Plant Pathology, Wooster, Ohio
Corresponding Author: Kelsey Andersen Onofre, andersenk@ksu.edu

Corresponding Author:

Kelsey Andersen Onofre
andersenk@ksu.edu

Abstract:

Fusarium head blight (FHB) management continues to be a challenge for wheat producers in Kansas. Over the past five years, the estimated average losses to FHB in Kansas alone exceeded $20 million annually. With the expansion of corn acreage in central and western Kansas, millions of acres of wheat are at risk annually. Furthermore, only a small number of hard red winter wheat varieties with intermediate resistance and well adapted to central and eastern Kansas are available, leading to a reliance on fungicide treatment programs. Here we present an analysis of climate and cropping system practices that have influenced FHB development in Kansas along with potential future risks. In recent years, new fungicide products have become labeled for FHB control in the United States, giving Kansas producers and wheat producers throughout the country new options for FHB management. These new products include Miravis Ace® (Propiconazole + Pydiflumetofen), Sphaerex® (Metconazole + Prothioconazole) and Prosaro Pro® (Prothioconazole + Tebuconazole + Fluopyram). A synthesis of multi-state trials comparing the efficacy of these products when applied at early flowering (Feekes 10.5.1) indicate that they each provide significant control of FHB and DON when compared to the non-treated check. Additional comparisons with the industry standard fungicide Prosaro® (Prothioconazole + Tebuconazole) will be presented. In addition, with the availability of less expensive generic fungicides producers may see two-treatment programs as an economically viable option. Results for two-treatment fungicide programs will be presented, including the application of Miravis Ace® at early flowering (Feekes 10.5.1) followed by an application of Folicur® (Tebuconazole) or generic equivalent. Results indicate that this two-treatment program significantly reduced by FHB and DON when compared to a single, early flowering (Feekes 10.5.1) application. Additional results will be presented and discussed. These practical results will provide important insights for the wheat industry.

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