Identifying and Controlling Invasive Grassy Weeds in a Bermuda Lawn

Identification First

Use weed ID resources to distinguish Bahiagrass, nutsedge, or other grassy weeds. Nutsedge favors wet soils; if your soil is well-drained, it's likely not nutsedge.

• Weed Identification Guide

Herbicide Options for Bermuda

• Arsenates (MSMA, DSMA, calcium arsenate): Only selective option for grassy weeds in Bermuda. Temporarily discolors Bermuda but recovers. Toxic, banned in some states; avoid near wells/water.
• Glyphosate (Roundup): Spot-treat dense patches; re-sprig Bermuda in spring.
• Pre-emergents: Apply annually per label to prevent weed seed germination. Most efficient long-term strategy.

Cultural Prevention

Mow high, water deeply, fertilize appropriately to maintain dense Bermuda canopy that shades out weed seeds.