A bitter harvest for California

California's agricultural community hopes the Trump administration will ditch its plans to impose tariffs on Chinese aluminum and steel, as the state's farmers will be hit hard if its top trading partner imposes retaliatory levies.

Associations representing the wine, nut and citrus sectors have voiced concerns over potential 15 percent tariffs on US agricultural commodities, mostly produced in California.

"Growers are always concerned with tariffs placed on their products from any country," said Richard Matoian, executive director of American Pistachio Growers.