Fusarium Head Blight Risk – May 1, 2017

Nathan Kleczewski, Extension Field Crop Plant Pathologist, University of Delaware
Rain has pushed a large portion of the region into a severe level of risk for FHB if that wheat is currently flowering. Most of the wheat in S Delaware and S Maryland likely started to flower late last week and is at elevated risk for FHB, especially if a suceptible variety was planted. Growers with wheat flowering at this time are advised to make an application of a FHB fungicide (Caramba, Prosaro, Proline). Applications are most efficacious when applications occur from the start of flowering, through p days from the start of flowering. Apply in 5 gal/A air and 15 gal/A by ground, 300-350 um droplet size, with nozzles at least angled forwards 30 degrees. Wheat not yet flowering is not at risk. Continue to check your wheat and this page for updates.
Fusaruim Risk across the Mid Atlantic on May 1, 2017.

 


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