Abstract
Cowpea ( Vigna unguiculata) is grown on approximately 5,220 ha across California and several Midwestern and southern states. In August of 2020, a viral disease was observed infecting cowpea in commercial fields and research trials in Nebraska, United States. Based on RNA sequencing and serology, the virus species was identified as Alfalfa mosaic virus. To our knowledge, this is the first report of this virus on cowpea in the United States.
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