Move over "Lake America." Donald Trump has opened a fresh front in his running battle with Canada, and this time the target is the drinks cabinet.

The US president on Tuesday escalated his trade war against Ottawa, banning imports of alcohol and other goods and hiking tariffs elsewhere, with the dispute showing no sign of cooling.

Canadian Prime Minister Mark Carney stood firm, acknowledging that loosening economic ties with the United States would come at a cost but insisting the benefits would outweigh the pain.

A range of Canadian products, from mattresses to motorboats and golf carts, will face a 50% surcharge from 15 September, according to Trump's executive order issued late Tuesday.

A separate import ban targeting various alcoholic beverages as well as dairy products such as whey will take effect on 29 September, under other executive orders issued at the same time.