A report on genetically modified canola from a State Government appointed reference group shows that touted economic benefits to farmers have been exaggerated, opponents of the technology say. Network for Concerned Farmers spokeswoman Julie Newman said the report showed there was no financial advantage in using the technology. WA’s first commercial trials of GM canola have been planted across 20 sites over 850ha. Proponents of Roundup Ready canola hope it will help manage weeds, give them another crop option and improve profits.