Late blight has been reported in Benton County, MN, in commercial potatoes and been moving into additional fields in this area as a result of rains, high dew points, and cool weather. Growers in central MN should be scouting fields, applying fungicides to reduce tuber infection and killing fields to prevent further movement. Recommended fungicides to reduce tuber infection include Gavel, Omega and Ranman. Late blight is an explosive disease that can spread quickly in cool wet weather so it is important to keep the foliage protected with fungicides late in the season. We would appreciate receiving samples of late blight for genotype identification.