Upcoming Webinar: Management of Fusarium Head Blight

— Written By Lindsey Thiessen
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Fusarium Head Blight

Fusarium head blight of wheat (also known as scab) is one of the most problematic diseases of wheat grown in the U.S. This disease is most commonly associated with Fusarium graminearum, but other Fusarium species may also cause similar symptoms. Symptoms of this disease include premature bleaching of the spikelets, and, upon close examination, pink to orange discoloration may be seen. Not only can the disease cause direct losses to wheat yield and quality, but infected grains are also at risk for containing mycotoxins (e.g. deoxynivalenol [DON]).

Management of this disease requires an integrated approach, and no single practice is adequate when a scab epidemic is severe. Current recommendations include the use of moderately resistant varieties and monitoring risk at heading and flowering. The online Fusarium Head Blight Risk Assessment Tool provides an estimate of risk at each location. If the risk is moderate or high, an application of a triazole (DMI or FRAC group 3) during early to mid-flowering is recommended. Efficacy of these treatments is dependent on environmental conditions that influence the presence of the fungus.

Upcoming Webinar

The U.S. Wheat and Barley Scab Initiative is sponsoring a two-part webinar series through the American Society of Agronomy led by Pierce Paul (the Ohio State University), Carl Bradley (University of Kentucky), and Christina Cowger (USDA-ARS). This series will provide up-to-date information on the basics of Fusarium Head Blight and management with tools like cultural practices, resistant varieties, and fungicides. This is a great opportunity to learn about the most effective tools to manage Fusarium Head Blight in small grains to improve grain yield and quality.

Part 1: Monday, February 11, 2019 • 11 a.m. CT

Understanding the Basics of Fusarium Head Blight (FHB) of Small Grains and Management of FHB with Cultural Practices and Resistant Varieties

Part 2: Monday, February 18, 2019 • 11 a.m. CT

Management of Fusarium Head Blight with Fungicides