Rural communities in northern Minnesota that live near potato farms that supply the Golden Arches have had enough. They have become victims of “pesticide drift,” in which the wind carries sprays and dusts away from the farms where they are used to other regions, negatively impacting public health, the environment and other crops. In Minnesota, where 98 percent of the state’s 50,000 acres of potatoes are sprayed with chemicals to prevent the growth of fungus — as often as every five days during the height of the growing season — pesticide drift is a major problem. The Environmental Protection Agency estimates that up to 10 percent of agricultural pesticide sprays drift from the target crop.