MADISON, Wis. (AP) — Wisconsin potato producers are facing new restrictions aimed at preventing crop disease.

Gov. Scott Walker signed two new measures involving potato growers Wednesday, Wisconsin Public Radio reported .

One measure requires potato growers to use certified seeds if planting on five or more acres of land. The state's seed certification program through the University of Wisconsin-Madison ensures that seeds are free of damaging levels of viruses or diseases.

"Certified seed goes through a various amount of lab testing too before it can be replanted so the commercial grower that'...