James Moore was responding to Russia's announcement that it will halt food shipments from Canada, the U.S. and many other Western countries for the next year.
The blockade is in retaliation for sanctions aimed at getting Russia to stop supporting rebels in Ukraine.
Moore says it showcases what he called Russian President Vladimir Putin's "irresponsible and belligerent" approach to foreign policy.
Canadian pork producers are especially concerned as frozen pork accounts for much of the country's agri-exports to Russia.
Moore says the potential loss of Russian markets is another reason to open up more free trade with Europe, South Korea and other countries.