date:Jul 01, 2014
It is estimated 4,000 hectares of canola in South Australias Lower and Mid North regions have been affected so far, ABC Rural reports.
The virus is transported by green peach aphids, which agronomists' say seem to have developed a resistance to insecticides since the state's last outbreak in 2007.
Agricultural consultant Mick Faulkner said they felt like they'd been blind-sided after not being able to work out what had been affecting crops.
It took everyone a fair bit of time to realise that