The U.S. just ended a decades-old tomato trade agreement with Mexico, and while prices could soon spike at grocery stores and restaurants across the country, one Stanislaus County farmer says not so fast.

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.