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© 1989, The Board of Regents of the University of Nebraska on behalf of the University of Nebraska–Lincoln Extension. All rights reserved.


Wheat streak mosaic was first recognized in Nebraska in the early 1920's as "yellow mosaic." This virus disease has the potential to cause serious crop losses in winter and spring wheats and in spring oats. It is most prevalent in the central and northern Great Plains. In Nebraska wheat streak mosaic commonly occurs in the west central and Panhandle, but also occurs in south central and eastern Nebraska. During some years the spring oat crop in northeast Nebraska is devastated by the combination of wheat streak mosaic and barley yellow dwarf diseases occurring in the same field.