| Barley Stripe Mosaic Virus (BSMV) |
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| Hordeivirus |
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Plant hosts
- Major hosts: Hordeum vulgare (barley)
- Minor hosts: Triticum aestivum (wheat)
- Hosts where status is unknown: Avena sativa (oats)
Click on image to view larger photo.
Image provided by State Plant Pathology Institute of Archives, Denmark.
Transmission
The virus is transmitted by mechanical inoculation, by seed, and by pollen to the pollinated plant. The virus can also be transmitted from plant to plant when leaves rub together as a result of wind, hail, or animals. No natural vectors of the virus are known.
Symptoms
Symptoms of BSMV are similar to the fungal disease barley stripe. BSMV causes yellow spots, stripes, and a mottled appearance on the leaves. Later spots and stripes may turn brown, often in a V shape, on leaf blades. Leaf blades may be nearly white, and plants may be stunted. The number of seeds per head, number of heads per plant, and kernel weight decrease in infected plants.
Geographic distribution
BSMV is probably distributed worldwide. It is known to be in the Eurasian region, the North American region, the Pacific region, Australia, China, the UK, the USA, and the former USSR.
Synonyms
- barley false stripe virus
- barley yellow stripe virus
- barley mild stripe virus
- oat stripe mosaic virus
Cultural control
- use seed known to be free of all known viruses
- plant resistant cultivars
Virus testing
Growers are encouraged to submit samples from plants suspected of harboring BSMV. To obtain further details on the seed testing program, please contact Dr. Mohamed ("Sid") Sedegui.
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