 Introducing Sertain Herbicide, the latest corn innovation from BASF. It brings powerful PPO residual chemistry into a pre- through early post-application thanks to novel solid encapsulation technology. Apply from pre-plant to V3 and get up to eight weeks of residual control or suppression of 79 broadleaf and grassweed species. Don't chase weeds all through the season. Attack them before they emerge with Sertain Herbicide from BASF. Always read and follow label directions.