The US is imposing a 17% tariff on most tomatoes imported from Mexico with immediate effect, the government said. The duty came into force after the US withdrew from a long-standing agreement with its southern neighbour,

A 17% import tax has been slapped on most fresh Mexican tomatoes. Proponents of the tariffs say it’ll help rebuild the shrinking tomato industry in the United States, but experts say prices will go up as much as 10% at the store in the meantime.

The U.S. Department of Commerce on Monday imposed an immediate 17.09% tariff on tomatoes imported into this country from Mexico. Most of the tomatoes sold in Arizona come from Mexico.