Gerald from Saluda, Nc writes
Hi-Yield Turf & Ornamental Weed and Grass Stopper is apre-emergent which provides superior control of crabgrass as well as control or suppression of other listed weeds when applied before they germinate. This will also provide post-emergent control of crabgrass only and is effective on crabgrass up to 4 to weeks after it has germinated and emerged.
Answer last updated on: 09/01/2018
