How do I get rid of dallis grass weeds in St. Augustine lawn grass?

Gardens & Landscapes October 25, 2011 Print Friendly and PDF

Dallis grass (Paspalum dilatatum) is a clump grass that can only be killed by manually digging up the clumps or spot killing them with one of the glyphosate herbicides. Any St. Augustine grass that the herbicide gets on will also be killed. However, it will grow back into the spot where the dallis grass was. Dallis grass is only propagated by seed, so it is imperative that it not be allowed to go to seed.

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.