[Fhb-update_cgp] FHB Update from OK, 04/26/13
FHB Update - Central GP, Hard Winter Wheat
fhb-update_cgp at scabusa.org
Fri Apr 26 07:55:18 PDT 2013
Yesterday (25-Apr) wheat in central Oklahoma to the southwest, west, and
northwest of Oklahoma City (OKC) was examined. Wheat in this area was
variable, but mostly around GS 10 (boot stage) to heads just emerging.
Fields where freeze damage occurred showed a wide range of tiller maturity.
Powdery mildew, leaf spotting (tan spot/septoria/stagonospora) and some
stripe rust was found. No leaf rust was found at any stop. Stripe rust also
was observed this past week around Stillwater/Perkins. Symptoms indicative
of barley yellow dwarf are common, however, freeze damage symptoms make it
difficult to comfortably identify BYD without confirmation in the lab.
--Bob Hunger, Extension Plant Pathologist, Oklahoma State University
For more details, go to the FHB Risk assessment tool at
http://www.wheatscab.psu.edu
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