CANNONADESurefire Cannonade 212 EC SureFire CANNONADE 212EC herbicide is a selective phenoxy herbicide used for post emergence control of annual and perennial grass weeds, but does little or no harm to broad leaved plants. is rapidly absorbed by leaves and green stems and translocated throughout the plant. It accumulates at growing points, both above ground and in the roots, rhizomes and stolons of grass weeds. Weed growth, and hence competi tion with the