First report of a new crop virus in North America

Evidence of the new mastrevirus, tentatively named switchgrass mosaic-associated virus 1, has been discovered by researchers. Other members of the mastrevirus genus, a group of DNA viruses, are known to be responsible for decimating yields in staple food crops -- including corn, wheat and sugarcane -- throughout Africa, Europe, Asia and Australia. It has never been reported in North America.

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