FHB Update from IL, 05/13/19

We continue in a pattern of high humidity that will favor FHB this week. Much wheat in the south has flowered over the last 7-10 days, and wheat in the central part of the state will likely enter flowering this week, especially if temperatures hit the 80's as forecast. If you are entering flowering this week, continue to monitor the FHB prediction center and forecast. Remember that fungicide applications of Caramba, Prosaro, Proline, and Miravis Ace applied from Feekes 10.5.1 (when approx. 50% of MAIN tillers start to flower) through 5-6 days from the start of this point provide the greatest efficacy for suppressing FHB. Follow all label guidelines.

For those who flowered last week, FHB symptoms will start to appear 18-24 days after flowering, depending on variety and weather. Scouts and growers should plan on scouting fields around this time to assess potential impact of FHB on their crop. More information on harvest based management options to consider for FHB infected fields can be found after 10 am on 5/13/19 at http://cropdisease.cropsciences.illinois.edu/

--Nathan Kleczewski, Research Assistant Professor and Extension Specialist, University of Illinois

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