The canola industry is expressing concern that China will retaliate to Canada's expulsion of its diplomat by blocking agricultural shipments. The canola industry is expressing concern that China will retaliate to Canada's expulsion of its diplomat by blocking agricultural shipments. China blocked canola shipments from two major Canadian companies in 2019 not long after Huawei executive Meng Wanzhou was arrested by Canadian authorities, and the ban lasted for three years. The ban lasted for three years before being lifted in 2022. On Monday, the Canadian government expelled Chinese diplomat Zhao Wei, alleging he was involved in a plot to intimidate...