Matthew from Dallas writes
Unfortunately, there are very limited options for post-emergent control of dallisgrass in residential lawns. Certainty Herbicide is the only selective herbicide approved for residential lawns to treat dallisgrass however it is only labeled for suppression and not for control. A non ionic surfactant should be used with Certainty and you will have to make multiple applications to see results. We recommend using a pre-emergent containing the active ingredient dithiopyr to prevent new dallisgrass, such as Dimension 2EW or Crew Specialty Herbicide.
Answer last updated on: 08/11/2021