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. is pulling out of a three-decade-old tomato price agreement with Mexico. The move is to make way for a nearly 21% tariff on most Mexican tomato imports.