Meso 4SC Select is a herbicide that can be used for both pre and postemergence control of more than 45 broadleaf weeds and grasses in turfgrass. Classified as a Group 27 herbicide, Meso 4SC Select inhibits photosynthesis in susceptible plants and is absorbed systemically through leaves, roots, and shoots. Meso 4SC Select can be effectively used for weed control prior to and when seeding of specific types of turfgrasses.