New barley virus detected

A new virus species has been detected in some cereal crops in the Victorian Wimmera region.

First identified in South Korea in 2015 Barley Virus G, which is associated with yellow dwarf viruses, was found in the country this year during testing of the green bridge over the summer.

Agriculture Victoria epidemiologist Narelle Nancarrow said the discovery took testers by surprise.

Little is known about the virus, including how long it may have been in Australia, its epidemiology, distribution, whether a particular type of aphid transmits it, what its relationship is with yellow dwarf viruses or how it affects crops.

Affected paddocks were sprayed out before the 2018 season as researchers continue to monitor for re-emergence in the coming months.

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