[Fhb-update_cgp] FHB Update from OK, 05/13/14

[FHB Update - Central GP, Hard Winter Wheat]

Oklahoma: At field days yesterday (Cherokee) and the end of last week
(Kildare and Lahoma) in north central Oklahoma, wheat was at or approaching
the milk stage. Some rain has fallen in local areas where it may help the
wheat, but mostly the rain was either too late (southwestern/western OK) or
nothing fell. Temperature this week is forecast to be cool (70s), but little
chance of widespread rain. No foliar diseases were observed at any of the
field days this or last week. We continue to receive samples testing
positive for mite transmitted viruses and/or barley yellow dwarf virus, but
now that the wheat is turning these samples are becoming infrequent. At the
field day yesterday (Cherokee), whiteheads in the trial were observed that
were the result of freeze damage, but an occasional plant/tiller also could
be found with a dark discoloration of the lower stem. Sometimes this
discoloration was indicative of dryland root rot but occasionally a lesion
more typical of sharp eyespot also could be found.

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

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