[Fhb-update_cgp] FHB Update from OK, 05/31/14

[FHB Update - Central GP, Hard Winter Wheat]

This is likely my last report on diseases for this season. Last week
Nathalia Grachet (OSU graduate student) and I traveled to the Oklahoma
panhandle for field days and wheat viewing. Although at a low incidence, we
did see scattered whiteheads in a few fields indicating root rot. Based on
the symptoms, the cause most likely was Fusarium. We also saw symptoms
indicative of wheat streak mosaic/high plains disease, but this was in
irrigated wheat Jen Olson suggested testing not only for these virus
diseases but also for bacteria, which she currently is doing.

Wheat from Stillwater to the panhandle ranged from various stages of dough
to approaching full maturity. Many fields obviously will not be harvested,
but irrigated wheat in the panhandle looked decent and there were a few
(very few) fields of dryland wheat that appeared relatively decent
considering the year. I have had one report of a dryland field (nearly a
section in size) of ‘Duster’ located just north of the Red River that
yielded 33 bu/acre with 61-62 test weight. Apparently this field lies in an
area where it picked up some timely showers that helped it considerably.


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

For more details, go to the FHB Risk assessment tool at
http://www.wheatscab.psu.edu