A group of 10 eastern Idaho potato growers and a shipper have filed a lawsuit seeking to end a quarantine and field testing imposed by state and federal authorities after the discovery of a microscopic pest that led some countries to ban Idaho spuds, the AP reports. The lawsuit names both the U.S. Department of Agriculture and the Idaho Department of Agriculture.

The discovery of the pale cyst nematode in Bingham and Bonneville counties in 2006 was the first detection of the pest in the United States, and authorities have been trying to eradicate it ever since; the land where it was discovered, a tiny fraction of Idaho’s potato-growing acreage, is out of the potato-growing business. But the discovery has prompted some to shun Idaho potatoes in general; Japan still won’t allow their import. AP reporter Keith Ridler has a full report here.