The deal would make Bunge the world’s largest grain trader and it would use its clout to the detriment of farmers, the NFU warned.
The deal is awaiting a Canadian government decision on whether to allow it.
The NFU said farmers formed co-operatives to market their grain, evolving into the Alberta, Saskatchewan and Manitoba wheat pools which Viterra bought a merged.
Even that was not enough, so farmers persuaded the federal government to form the Canadian Wheat Board and grant it monopoly power over grain exports, including a monopoly on inter-provincial grain trading.
In the 1960s and 1970s, that proved to be unpopular and federal grains ministers, beginning with Otto Lang, removed some grains from the inter-provincial monopoly, starting with barley.
Then the Conservative government of former Prime Minister Stephen Harper cancelled the Wheat Board’s monopoly, setting the stage for foreign grain-trading companies to buy export infrastructure, such as the provincial wheat pools.