Thanks in advance for everyone's help...

Is anyone aware of a granular-based post-emergent that will destroy rapidly invading dallisgrass & crabgrass coming from a large empty lot behind my house? I've tried treating w/ Image spray, but it's cumbersome and feels like an uphill battle. (Yes -- I've learned my lesson and will never flake on pre-emergent again. Ever.)

I'm looking for a product that I can apply via my rotary spreader.

Does it exist? Recommendations?

Thanks,