What Kills Dallisgrass in St Augustine?

2) You can spray individual dallisgrass plants with glyphosate (Killzall, Roundup, Kleenup and other brands). This will kill the St. Augustine as well, so do your best to focus the application just to the dallisgrass. This will kill individual plants.

How do I get rid of dallisgrass in St Augustine?

In St. Augustine and centipedegrass lawns, spot treatment of dallisgrass with glyphosate (Roundup) is most effective. Treated areas need to be plugged or sodded with St. Augustine or centipedegrass after dallisgrass dies to prevent other weeds from becoming established in the dead areas.

How do you kill dallisgrass without killing grass?

To get rid of Dallisgrass, chemical options are your best bet, especially if you have a large outbreak which will be time-consuming and take too much work to dig out. We recommend using a post-emergent herbicide like Celsius WG to kill and suppress Dallisgrass.