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Help in killing Dallis Grass but not St. Augustine

Posted on 3/28/24 at 8:10 pm
Posted by Fred439
Houston
Member since Aug 2011
161 posts
Posted on 3/28/24 at 8:10 pm
I need a recommendation on something that will kill Dallis Grass and not St Augustine.
Posted by WHATASHAME
Louisiana
Member since Sep 2009
611 posts
Posted on 3/28/24 at 8:15 pm to
Dig it up. Get it all. Refill with un-contaminated soil. Place sod.
Posted by Skippy1013
Lafayette, La
Member since Oct 2017
512 posts
Posted on 3/28/24 at 9:02 pm to
Use Round Up in a pump sprayer and give it a direct shot with the tip of the wand pushed down on the center of the weed and give it a quick shot.

The weed will die, but not the surrounding grass. After a few days, the weed will be very easy to pull up. Throw a little dirt or sand on the spot and let your good grass fill in.
Posted by ronk
Member since Jan 2015
6180 posts
Posted on 3/28/24 at 9:09 pm to
Nothing. Zero. Dig, deal, or death
Posted by bonstonker
Member since Jan 2008
231 posts
Posted on 3/29/24 at 10:12 am to
I hit mine with glyphosate during the winter and I still have some coming back up.

Used a little hand weed puller to remove.
LINK

Very easy to pull up this time of year.
Posted by GetmorewithLes
UK Basketball Fan
Member since Jan 2011
19049 posts
Posted on 3/29/24 at 11:28 am to
MSMA is recommended but is a commercial use.

Celsius WG will get it but not sure if compatible with St Aug.

Pulling it will not get rid of it
Posted by Ziggy
Member since Oct 2007
21509 posts
Posted on 3/29/24 at 2:30 pm to
quote:

Pulling it will not get rid of it

Why not?
Posted by Swagga
504
Member since Dec 2009
16130 posts
Posted on 3/29/24 at 2:49 pm to
I just finished digging up an entire patch of my yard that had Dallis grass. I’ve been fighting it for 5 years
Posted by GetmorewithLes
UK Basketball Fan
Member since Jan 2011
19049 posts
Posted on 3/29/24 at 5:43 pm to
quote:

Why not?


spread by Rhizomes too. pulling will thin it back but wont be 100% effective
Posted by ronk
Member since Jan 2015
6180 posts
Posted on 3/29/24 at 9:12 pm to
Msma is not recommended as it will kill St Aug. there is nothing you can spray to kill Dallisgrass and not kill St Aug.

Also, Celsius will not kill it but it can be used for other weeds in St Aug.
This post was edited on 3/29/24 at 10:25 pm
Posted by Ziggy
Member since Oct 2007
21509 posts
Posted on 3/29/24 at 9:25 pm to
So what could you spray to kill Dallis assuming you weren't worried about the existing turf? MSMA do the trick?
Posted by ronk
Member since Jan 2015
6180 posts
Posted on 3/29/24 at 10:23 pm to
Glyphosate and nothing else
Posted by Ziggy
Member since Oct 2007
21509 posts
Posted on 3/29/24 at 10:26 pm to
Roger that.
Posted by DVinBR
Member since Jan 2013
12964 posts
Posted on 4/1/24 at 12:23 pm to
Certainty and Celsius
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