The Andersons 21-22-4 Starter Fertilizer w/ Mesotrione 40 LBThis unique combination of starter fertilizer and Mesotrione herbicide is ideal for use during turf establishment, renovation or overseeding to control selected grassy and broadleaf weeds while providing a high quality starter fertilizer to promote seedling germination and rapid establishment. 21 22 4 Fertilizer with Mesotrione homogeneous 135 SGN granules are engineered to provide excellent coverage, with up to 6. 5 particles per square inch at the