THE Australian Grain Harvesters Association (AGHA) is becoming increasingly concerned about the implications of handling genetically-modified (GM) canola crops as the countdown to this year’s harvest gets under way. Already, there is talk of members boycotting properties growing GM canola for fear of spreading seed into non-GM canola paddocks. At issue are the legal implications which might eventuate should header operators unintentionally spread GM canola seeds when moving between properties.