Winter wheat in New York is generally a week or more past the initiation of flowering, and fungicide application should no longer be considered. Some fields may be harvested within 30 days, the harvest restriction interval for triazole fungicides. According to the FHB Risk Tool, the risk of FHB resulting from infection at flowering in May was low across the state. The first leaf rust of the season was observed this week in Orleans Co. Powdery mildew and fungal leaf blotches are present but generally at low levels. Several fields in the western counties along Lake Ontario had armyworm above threshold levels and were sprayed with insecticide. Overall, the New York winter wheat crop looks excellent.
–Gary Bergstrom, Extension Plant Pathologist, Cornell University
For more details, go to the FHB Risk Assessment Tool at http://www.wheatscab.psu.edu/riskTool_2012.html
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To see past blog entries for this region: http://scabusa.org/modules/wordpress/index.php/category/northern-sww-region
