The Victorian Farmers Federation has labelled moves by anti-GM group, Gene Ethics, to place a list of names and property locations of farmers supposedly growing GM canola on their website as a disgraceful invasion of privacy.
The VFF claims the map includes the property location of Victorian Premier John Brumby.
VFF president, Simon Ramsay, said the release of unconfirmed maps of supposed GM canola sites with the names of property owners was appalling.
"This is a disgraceful and unsubstantiated witch hunt and shows how few ethics, Gene Ethics really have," Mr Ramsay said.
"Farmers have as much right to privacy as any other citizen, and Bob Phelps and his gang of activists have no excuse for breaching it.
"Gene Ethics claim that this is some sort of public service is self serving nonsense.
"Even if GM canola was being grown at these locations, the reality is that all relevant authorities have approved of the technology and allowed farmers the choice."
According to AAP, Mr Brumby has denied his wife is growing GM crops at the farm, and has asked for the Gene Ethics Network to respect farmers' right to choose.