Crabgrass can be a difficult weed to deal with in your yard. There is a tiresome cycle that can be created when trying to remove it. Each individual crabgrass plant can produce and release up to 150,000 seeds throughout a season! If you pull crabgrass out of the ground, there's a high chance that at least a few of those seeds have fallen into the soil already and are sitting dormant waiting to germinate for the next season. To prevent this from happening you want to start your prevention methods before the crabgrass plants have a chance to produce and release those seeds. Granular crabgrass preventer is a pre-emergent, meaning you need to stop the germination before it occurs. If this window is missed, Drive XLR8 (Quinclorac) will need to be applied as a granular is not longer effective.