The Q&A Archives: Oxalis in ST Augustin Grass

Question: I have oxalis and crabgrass taking over my lawn. There is no way to get rid of then, other than manually removal. On your Q&A you suggest using a broadleaf weed killer. After you have killed the weeds, rake them out of the lawn. This do not remove the Oxalis bulbs underground. How do I kill the Oxalis including the bulbs so then do not come out again?

Answer: According to the product label, Atrazine Weed Killer for St. Augustine Grass will kill oxalis, including the bulbous roots. Be sure to read and follow label directions so you won't harm your turf and so you can apply it at the right time (usually fall) for best results.

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