Plant Disease

Aggregate sheath spot symptoms are characterized by oval lesions with green or gray centers surrounded by a distinct brown margin and several lesions can occur together.

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    Plant Pathology Online - American Phytopathological Society

     Monday, November 23rd,  2009, St. Paul MN USA


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Occurrence of Viruses in Wheat
in the Great Plains Region, 2008

 
 

   In the Great Plains, specialized pest complexes threaten the sustainability of small grain production. This month's APSnet Feature presents the results of a major new survey of the viruses present in our cropping systems. More than 750 symptomatic plants in nine states were tested for a range of potentially important viruses. The results should help provide more accurate information to producers, and lead to improved diagnostic tools, research projects, and management strategies.

— APSnet Features Editor, Gary D. Franc


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