Provides exceptional broadleaf weed control – fast. In university and cooperator tests SpeedZone applications have repeatedly controlled tough weeds like clover, plantain, ground ivy and spurge with a fast-acting cool-weather response exhibiting injury within hours. Speed Zone contains an advanced chemistry for broadleaf weed control in turf. The mode of action inhibits a key enzyme in chlorophyll production. This causes cell membranes to rupture and rapidly disintegrate within hours. See label for application rates and mixing ratios. Sold in 1 and 2.5 gallon jugs.