Todd from Natchez, Ms writes
Bonide Grass Beater Over-The-Top Grass Killer Concentrate needs to be applied to weeds that are actively growing in order to kill them. This product rapidly enters the target weed through its foliage and translocates throughout the plant. The effects range from slowing or stopping growth (generally within 2 days), to foliage reddening and leaf tip burn. Subsequently, foliage burnback may occur. These symptoms will generally be observed within 3 weeks depending on environmental conditions. You would need to wait until the grass you are targeting is dead before tilling.
Answer last updated on: 02/29/2016