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Beet black scorch virus
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First U.S. Detection of Beet black scorch virus

IDENTITY

Name: Beet black scorch virus

Taxonomic Position:

Tombusviridae : Necovirus

Common Names:

BBSV

Significance:

The name, Beet black scorch virus (BBSV) was only recently accepted by the International Committee on Taxonomy of Viruses but has been an issue on sugar beets in China since the late 1980s. In 2005 Weiland et al. detected BBSV in Greeley, Colorado from a sugar beet (Beta vulgaris L.) production field. This is the first known detection outside of China.

Issues of Concern:

Symptoms are similar to rhizomania caused by Beet necrotic yellow vein virus and related Beet soilborne mosaic virus. Nucleotide sequences and physical characteristics were needed to confirm the agent as Beet black scorch virus.

Vector(s)/Dispersal:

A paper by Jiang et al. in 1999 discusses transmission by Olpidium brassicae zoospores.



OTHER INFORMATION:

References:

Weiland, J.J., Larson, R.L., Freeman, T.P., and M.C. Edwards. 2006. First report of Beet black scorch virus in the United States. Plant Disease 90:828.

Other References:
Jiang, J. X., J. F. Zhang, S. C. Che, D. J. Yang, J. L. Yu, Z. N. Cai, and Y. Liu. 1999. Transmission of Beet black scorch virus by Olpidium brassicae. J. Jiangxi Agric. Univ. 21:525-528.




Warning: The information in this alert has not been confirmed with the appropriate National Plant Protection Organization and is provided solely as an early warning. Please use the above information with caution.

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Prepared on: 06/07/2006
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