Canadian mushroom farmers are expressing worries about the potential impact of recent American tariffs on their sales in both countries. On July 14, the United States announced an 8.26 per cent anti-dumping tariff on Canadian mushrooms following an investigation by the U.S. Department of Commerce. This tariff came into effect on July 17, adding to a previous 2.84 per cent tariff announced in May.
Some Canadian mushroom growers who do not export to the U.S. fear that larger companies that do export may now shift their focus to the Canadian market, leading to oversupply and a decrease in prices. Mike Medeiros, a partner at Carleton Mushroom Farms, mentioned concerns about the potential price reduction due to oversupply within Canada.
Mushrooms Canada stated that Canadian fresh mushrooms account for about 20 per cent of the American market, attributing this success to the higher quality of Canadian mushrooms. Some Canadian exporters mentioned that their American customers are currently absorbing the increased costs but are exploring other options.
Champag Mushrooms, a company near Montreal, anticipates a possible reduction in production to prevent saturating the Canadian market and driving down prices. The Fresh Mushrooms Fair Trade Coalition in the U.S. alleges that Canadian growers benefit from unfair subsidies, while Mushrooms Canada argues that both countries’ farm products benefit from tax exemptions.
Despite the challenges posed by the tariffs, Canadian growers are optimistic about the demand for Canadian mushrooms in the U.S. However, they acknowledge that higher costs could impact demand and profits. The CEO of Mushrooms Canada highlighted the importance of Canadian mushroom cultivation, especially in eastern Ontario, and predicted potential price increases in the U.S. due to tariffs.
Carleton Mushroom Farms emphasized the need for price increases in the industry to address inflation and eroding margins over the past few years. Mushrooms Canada is appealing both tariffs to the U.S. Department of Commerce, with a final decision expected in the fall. Additionally, Canadian fresh mushrooms were not subject to the latest 50 per cent tariffs proposed by the U.S. government.

