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.

Over the past 30 years, Florida tomato growers’ share of the U.S. tomato market has shrunk from 80% to 20%, as Mexico-grown tomatoes become more common on shelves, Arizona State University professor Tim Richards said. Richards predicts the price of tomatoes will increase by about 8.5%, half the amount of the 17% tariff.