John Deere’s “unfair” practices raised repair costs for farmers and kept them from being able to make repairs on tractors and other equipment they own, the Federal Trade Commission (FTC) alleges in a new lawsuit.

The Federal Trade Commission is accusing Deere & Co. of unfairly monopolizing the farm-equipment repair market.

The Federal Trade Commission sued Deere, alleging the tractor maker limits farmers’ ability to repair their own equipment, giving Deere an illegal monopoly on repair services. The FTC’s lawsuit, filed Wednesday in Chicago federal court,