The Pesticide Action Network spent three years monitoring the air in 19 locations such as Perham and Frazee. The group says sites near potato fields are especially prone to pesticide drift. One fungicide turned up in 64 percent of the air samples.

The New York Times reports investment firms are jockeying to buy claims off thousands of MF Global customers, which includes many Minnesota farmers. Most of those offers are for 90 percent of face value. It could spell a big change in fortune for Minnesota's farmers and agricultural business owners, many of whom had large accounts on the books with the commodities firm when it collapsed.