The agriculture industry in the U.S. state of California worried that it will suffer a lot as the United States' steel and aluminum tariffs on the European Union (EU), Canada and Mexico have caused a strong backlash.

Josh Rolph, federal policy manager for the California Farm Bureau Federation, was quoted by the news outlet Ag Alert as saying on Tuesday that four of the top five exporting destinations for Californian agriculture are at immediate risk, and that the disputes between the United States and these economies are worrisome.

The weekly online magazine listed the retaliatory tariffs on U.S. imports that the three economies had announced, as well as China's latest warning that it would reinstate import duties on U.S. goods if the Trump administration pushes forward potential tariffs on Chinese goods.

The EU told the World Trade Organization last month it planned to enact tariffs on more than 3 billion U.S. dollars worth of U.S. goods, including agricultural products such as rice, corn, dry kidney beans, cranberries, tobacco and orange juice.

Canada's retaliation list included food products such as ketchup and other tomato sauces, yogurt, strawberry jam, nut purees and pastes, berry and other fruit purees, orange juice, pickles, maple syrup, and prepared bovine meat and meal. Those items would be hit with a 10-percent duty.

Mexico released an official list Tuesday, which included agricultural items such as cheeses, apples, potatoes, cranberries, and a number of ham, pork and sausage products.

"The impact to California agriculture is not fully known," the report said. It cited the 2016 data showing dairy products exported to Mexico, rice sold to the EU, as well as processed-tomato exported to Canada from the state amounted to 421 million dollars, 35 million dollars and 295.6 million dollars respectively.

Brian Kuehl, executive director for Farmers for Free Trade, told the magazine that the new tariffs from the EU, Canada and Mexico could "take many American farm operations to the breaking point."

"Already, farmers are grappling with the impact of previous tariffs, which have caused falling commodity futures, higher equipment prices, and the markets they've fought to get into for decades to vanish overnight," he said.

"The addition of new retaliatory tariffs on everything from bourbon, to rice, to orange juice and cranberries will only widen the pain to additional farmers across the country," Kuehl said.