Esker is a high yielding grain oat variety developed at the University of Wisconsin-Madison. Esker is a mid-season oat that heads about a day later than Moraine and about 3 days earlier than Drumlin. In 19 statewide trials (7 locations, 2002 thru 2004), Esker had high average grain yields. Has shown good resistance to crown rust. Packaged in 50 lb bags. Seeding rate 70-100 lbs/acre.