Let’s discuss the effectiveness of three herbicides for your lawn: SedgeHammer, Certainty, and Dismiss, for controlling sedges and kyllinga in lawns. Readers shared their experiences with these products on different types of grass, mainly Zoysia and Bermudagrass.
SedgeHammer
- Generally effective but may require reapplication in subsequent seasons.
- Some readers mentioned that it doesn’t kill Kyllinga.
Certainty
- Effective for ongoing maintenance against sedges.
- Good for use in the heat of summer.
- Some readers found it less effective than SedgeHammer initially but mentioned it might need more time.
Dismiss (Sulfentrazone)
- Effective against green kyllinga.
- Some readers mentioned that it may cause temporary discoloration in certain Zoysia cultivars.
Recommendations Based on Grass Type
For Zoysia:
- Dismiss is generally not recommended as it may cause temporary discoloration in some Zoysia cultivars.
- Certainty is preferred for Zoysia, especially for long-term control and use in the heat of summer.
For Bermudagrass:
- Both Certainty and SedgeHammer are effective.
- Dismiss can be used but may cause slight discoloration.
