[Fhb-update_cgp] FHB Update from OK, 04/20/11

[FHB Update - Central GP, Hard Winter Wheat]

Wheat Disease Update – 20 April 2011
Bob Hunger, Extension Wheat Pathologist
Department of Entomology & Plant Pathology
Oklahoma State University

Oklahoma:  Wheat around Stillwater is entering the flowering stage, but no change in foliar disease incidence and severity over the last 10 days has occurred because of the drought.  Although pustules of leaf rust and powdery mildew can be found, foliar diseases appear to be negligible around Stillwater and across Oklahoma.  Samples testing positive for barley yellow dwarf virus and wheat streak mosaic virus have been received in the Diagnostic Lab from eastern, northern, and northwestern Oklahoma.  Around Stillwater, BYD is prevalent in many trials and powdery mildew can still be observed on lower (F-3 and F-4) leaves.

 --Bob Hunger, Extension Plant Pathologist, Oklahoma State University

 For more details, go to the FHB Risk Assessment Tool at http://www.wheatscab.psu.edu/riskTool_2011.html