Farmer planted certified Jerry oats in ~5 acre field. Oats have been grown in this field for the last 6 years. Recently notice a large patch 40′ x 150′ that had much taller oats, with more open and larger seed heads. The oats in question appear to be wild oats, and did appeared both in the planted row and in between planted rows. This is the first time the farmer has seen this and I have not observed wild oats in the area before either. Given the fact that this is the only field on the farm with wild oats, what is the chance that is came in on the purchased seed (South Dakota Certified Seed)? What control options would be recommended to reducing wild oats on the farm in the future?