weed killer for st augustine grass

When it comes to treating weeds in St. Augustine grass, it’s important to use herbicides that are specifically formulated to target the weeds without harming the grass itself. Here are some common weed killers that can be effective for treating weeds in St. Augustine grass:

  1. Atrazine: Atrazine is a selective herbicide that is commonly used to control broadleaf weeds and certain grassy weeds in St. Augustine grass. It is safe to use on St. Augustine grass and can help eliminate weeds without damaging the turf.
  2. 2,4-D: 2,4-D is another selective herbicide that targets broadleaf weeds like dandelions, clover, and chickweed. It is safe for use on St. Augustine grass and can effectively control a variety of common lawn weeds.
  3. Dicamba: Dicamba is a herbicide that is often used in combination with other active ingredients to control a wide range of broadleaf weeds. It is safe for use on St. Augustine grass, but care should be taken to follow application instructions carefully.
  4. Metsulfuron-methyl: Metsulfuron-methyl is a herbicide that can be effective in controlling certain tough-to-kill weeds in St. Augustine grass, such as nutsedge and dollarweed. It is important to use this herbicide with caution and follow manufacturer guidelines.
  5. Glyphosate: While glyphosate is a non-selective herbicide that will kill most plants it comes into contact with, it can be used to spot-treat weeds in St. Augustine grass if applied carefully to avoid damaging the turf.

Before applying any herbicide to your St. Augustine grass, it is essential to read and follow the manufacturer’s instructions carefully. Additionally, it’s a good practice to spot-test the herbicide in a small area before treating the entire lawn to ensure that it does not cause any harm to the grass. If you have specific weed species or concerns, consulting with a local lawn care professional or extension service can provide tailored recommendations for treating weeds in St. Augustine grass effectively.