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ARS Home » Pacific West Area » Pullman, Washington » Grain Legume Genetics Physiology Research » Research » Publications at this Location » Publication #402934
Research Project: Enhanced Agronomic Performance and Disease Resistance in Edible Legumes

Location: Grain Legume Genetics Physiology Research

Title: First Report of Alfalfa Mosaic Virus on Cowpea in the United States

Author
item HARVESON, ROBERT - University Of Nebraska
item Porter, Lyndon

Submitted to: Plant Health Progress
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/26/2023
Publication Date: 10/17/2023
Citation: Harveson, R.M., Porter, L.D. 2023. First Report of Alfalfa Mosaic Virus on Cowpea in the United States. Plant Health Progress. 24:514-521. https://doi.org/10.1094/PHP-03-23-0021-BR.
DOI: https://doi.org/10.1094/PHP-03-23-0021-BR

Interpretive Summary: Cowpea or black-eyed pea is grown on approximately 5220 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, U.S.A. Based on molecular and antibody techniques, the virus species was identified as Alfalfa mosaic virus. To our knowledge, this is the first report of this virus on cowpea in the Western Hemisphere.

Technical Abstract: Cowpea (Vigna unguiculata) is grown on approximately 5220 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, U.S.A. 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 Western Hemisphere.