Nikki from Casa Grande, Az writes
I live in Central AZ and my new house has a bare ground yard which I discovered is almost completely over run with a very well established underground crabgrass root system that literally is EVERYWHERE in my yard with roots starting from the surface down farther than 1' foot deep. Help!
Hi-Yield Crabgrass Weed Control is a selective pre-emergent herbicide, which would only be used to prevent the germination process of weeds. You would need to apply a post-emergent herbicide for your well established underground Crabgrass root system. Since your yard is bare ground without any turf grass to kill, we would suggest a non-selective post-emergent herbicide like Roundup QuickPRO applied to the undesired weeds, or for a larger area Roundup Pro Concentrate would be a good option.
Answer last updated on: 02/05/2021