[Fhb-update_ma] FHB Update from MD, 05/06/10

wheat at essc.psu.edu wheat at essc.psu.edu
Thu May 6 13:30:24 PDT 2010


6 May 2010

The 2010 season is nothing like 2009 when we had a major scab epidemic. Most of the southern half of the state is in flower or within a few days of flowering, even late planted fields are for the most part not that far behind. There have been only scattered showers and the forecast for next week does not appear to significantly change the scab potential. The southern half of the state does not need to be sprayed for scab. However, stripe rust and leaf rust have been found on the shore but are not yet widespread. Determine if you have rust resistance, and for rust susceptible varieties, scout for rust before making a final fungicide decision. For the northern half of the state flowering will soon begin. Continue to check this site for a scab risk assessment, but without a significant series of rainy days I don’t expect to see high risk of scab develop in the next week. There is no indication at this time that spraying for scab is needed anywhere in the state.

 --Arv Grybauskas, Extension Plant Pathologist, University of Maryland

 For more details, go to the FHB Risk Assessment Tool at http://www.wheatscab.psu.edu/riskTool_2010.html


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