Screening of premergence herbicides in centipedegrassduring turf establishment

Five premergence herbicides including Oxadiazon, Trifluralin, Barricade, Smetdachlor and Flazasulfuron were tested during the centipede turfgrass establishment period. The results showed that Oxadiazon will cause a direct and temporary leaf injury after herbicide application, but the injury was gradually recovered. Flazasulfuron caused significant and continuous injuries and growth inhibition to centipedegrass. Barricade, Turfluralin and Smetdachlor were all safe to centipedegrass, with no significant injuries occurred after their applications and all growth parameters measured were higher than the control. Barricade performed the best in the weed control among these three safety herbicides, and could be recommended for the weed control during the centipedegrass establishment.