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ARS Home » Pacific West Area » Pullman, Washington » Grain Legume Genetics Physiology Research » Research » Publications at this Location » Publication #375058

Research Project: Developing Abiotic and Biotic Stress-Resilient Edible Legume Production Systems through Directed GxExM Research

Location: Grain Legume Genetics Physiology Research

Title: Pea Streak Virus. In: Compendium of Pea Diseases and Pests

Author
item LARSEN, RICHARD - WASHINGTON STATE UNIVERSITY
item Porter, Lyndon

Submitted to: American Phytopathological Society Press
Publication Type: Book / Chapter
Publication Acceptance Date: 7/17/2020
Publication Date: N/A
Citation: N/A

Interpretive Summary: Pea streak virus (PeSV) was first reported on pea in Maryland and New Jersey in 1929. The virus is reported to occur in Canada, Czech Republic, Germany and U.S. Significant losses have occurred on peas in Oregon and Washington. Symptoms of PeSV include purple to brown necrotic streaks on stems and petioles and small brown necrotic lesions on leaves or pods. Pods fail to fill properly, limiting pea yield. PeSV is caused by a single-stranded RNA, positive-sense, monopartite Carlavirus. The virus is transmitted mechanically or by pea aphids. Alfalfa is considered a reservoir host for the virus. PeSV is not known to be seed transmitted. No pea cultivars current exist that are resistant to the pathogen but some are reported to be tolerant. Growers should avoid planting peas near alfalfa fields to reduce disease icidence. Insecticides may benefit the secondary spread of the virus via aphids.

Technical Abstract: Pea streak virus (PeSV) was first reported on pea in Maryland and New Jersey in 1929. The virus is reported to occur in Canada, Czech Republic, Germany and U.S. Significant losses have occurred on peas in Oregon and Washington. Symptoms of PeSV include purple to brown necrotic streaks on stems and petioles and small brown necrotic lesions on leaves or pods. Pods fail to fill properly, limiting pea yield. PeSV is caused by a single-stranded RNA, positive-sense, monopartite Carlavirus. The virus is transmitted mechanically or by pea aphids. Alfalfa is considered a reservoir host for the virus. PeSV is not known to be seed transmitted. No pea cultivars current exist that are resistant to the pathogen but some are reported to be tolerant. Growers should avoid planting peas near alfalfa fields to reduce disease icidence. Insecticides may benefit the secondary spread of the virus via aphids.