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Can anyone identify this weed or grass spreading in my yard?

Posted on 4/29/26 at 11:34 am
Posted by Seven Costanza
The Wild West
Member since Aug 2012
2065 posts
Posted on 4/29/26 at 11:34 am






In the second picture, you can see some centipede growing on the left side of the image for a frame of reference.

It turned yellow when I sprayed with Celsius. Some patches more yellow than what you see in these pictures. Not sure if it killed it completely or not.

It barely went dormant this winter. Had a bit of greenish tint throughout. It has runners mostly surface level that you can see a piece of in the last pictures.

Located in the northshore area. My yard is centipede grass.
This post was edited on 4/29/26 at 11:35 am
Posted by Loup
Ferriday
Member since Apr 2019
16929 posts
Posted on 4/29/26 at 12:59 pm to
kind of looks like tropical carpet grass
Posted by Pop
Member since Feb 2013
1099 posts
Posted on 4/29/26 at 6:21 pm to
Look up Torpedo grass and get the For Sale sign out.
Posted by Woodsmaster
Baton Rouge
Member since Mar 2021
181 posts
Posted on 4/29/26 at 6:51 pm to
Maybe southern water grass. Hard to tell from the picture if so then Celsius will not kill it. Even concentrated glyphosate will take multiple sprayings to kill it back and the odds are that next year it’ll return.
This post was edited on 4/29/26 at 6:53 pm
Posted by dragginass
Member since Jan 2013
3252 posts
Posted on 4/30/26 at 7:31 am to
If you can get a better picture, or have one on your phone, run it through the "PLANTNET" App for ID. I've had good luck with the app.
Posted by SixthAndBarone
Member since Jan 2019
11142 posts
Posted on 4/30/26 at 9:24 am to
Not sure but look into doveweed. Maybe?
Posted by s14suspense
Baton Rouge
Member since Mar 2007
15834 posts
Posted on 4/30/26 at 10:19 am to
I’m not sure exactly what it is but I’d bet that Sethoxydim would manage it for you.

Posted by Seven Costanza
The Wild West
Member since Aug 2012
2065 posts
Posted on 4/30/26 at 4:19 pm to
Thanks for all the replies and tips. I'll try running it through that app and see how Sethoxydim handles it.

I'm leaning towards carpetgrass right now.
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