Small Grains Disease Update 07/03/2019
The hot, humid weather is pushing the development of the wheat. I suspect that many of you will be spending the coming days, including tomorrow's holiday, either scouting fields to determine when to spray or in a tractor making an application at Feekes 10.51.
Consult NDSU's Extension bulletin 'Ground Application of Fungicides for Suppression of Fusarium Head Blight in Small Grains' (https://www.ag.ndsu.edu/publications/crops/ground-application-of-fungici...) to set up your sprayer correctly and get the most benefit of your fungicide application.
Prosaro, Caramba, or Miravis Ace applied at Feekes 10.51 (beginning of anthesis) will provide the best suppression of FHB. Tebuconazole will provide slightly less suppression of FHB. All products mentioned will give very good to excellent control of leaf diseases for the remainder of the season.
--Jochum Wiersma, Extension Agronomist, University of Minnesota Crookston
For more details, go to the FHB Risk assessment tool at http://www.wheatscab.psu.edu
For the latest news and updates from the U.S. Wheat & Barley Scab Initiative, go to https://www.scabusa.org