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 Diseases of Barley - Viral |  | 
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|  | Barley Stripe Mosaic Barley stripe mosaic virus (BSMV)
 
 What to look for?
 Yellow stripes on seedling barley leaves. This seed-borne disease  is of rare occurrence but still a certification requirement for barley seed entering into the US state of  Montana.
 
 
 
.|  Photo: Davidson
 | Picture description Distinct stripes on barley leaves.
 |  Photo: Evans
 | Picture description Seedling leaves showing striping.
 Virus disease spread is by leaf to leaf contact and possibly by pollen.
 |  Management strategy
 Disease free seed.
 
 A more complete description of Barley stripe mosaic virus.
 
 Barley Yellow Dwarf
 Barley yellow dwarf virus (BYDV)
 
 What to look for?
 Bright yellow flag leaves that show up in  early- to mid-July. This disease is spread by many species of grain aphids and usually by the end of the growing season all of the barley crop may be infected.  This same disease infects oats, wheat, rye and triticale.
 
 
 
.|  Photo: Haber
 | Picture description Yellow leaves that stand out in the crop.
 |  Photo: Evans
 | Picture description Bright yellow colour of flag leaves.
 |  |  Photo: Haber
 | Picture description Severe strains and susceptible barley host cause grain failure.
 |  Management strategy
 Use resistant cultivars. Most spring barleys are resistant to this virus.
 
 A more complete description of Barley yellow dwarf virus.
 
 Photographs and information assembled and prepared for AAFRD by Dr. Ieaun R. Evans Agri-Trend Agrology Ltd.
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|  | Other Documents in the Series |  | 
|  | Diseases of Barley - Bacteria and Phytoplasma Diseases of Barley - Non-Infectious
 Diseases of Barley - Viral - Current Document
 
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|  | For more information about the content of this document, contact Harry Brook. This document is maintained by Amrit Matharu.
 This information published to the web on December 1, 2003.
 Last Reviewed/Revised on December 8, 2010.
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