Open this photo in gallery: Roger Chevraux drives up to his canola field near Killam, Alta. on June 26, 2024.Amber Bracken /The Globe and Mail Canada’s canola producers say they have been abandoned by the federal government as retaliatory tariffs from China cause prices to sink to the lowest levels in years and threaten production slowdowns at canola crushing plants. The 100-per-cent tariff on imports of canola oil and canola meal to China – the industry’s second-largest market – came into force last Thursday. The new levy is a long-expected retaliation against Ottawa’s 100-per-cent tariff on Chinese-made electric vehicles and...