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Dollar weed .... how to kill it?

Posted on 5/11/21 at 8:33 am
Posted by tigamike
Member since Jun 2005
5113 posts
Posted on 5/11/21 at 8:33 am
I’ve sprayed twice with mix of altrazain and ferti-lome weed free zone and done an application of granular weed and feed. This stuff still is hanging around.
Posted by CatfishJohn
Member since Jun 2020
13334 posts
Posted on 5/11/21 at 8:44 am to
Dude my dollarweed will not die either. It'll disappear after a treatment and comes back meaner than ever. I've almost given up.

The only lawn weed I haven't been able to get rid of completely. I think it's because my neighbor has a goat ranch looking front yard and it contaminates my property.
Posted by ronk
Member since Jan 2015
6170 posts
Posted on 5/11/21 at 8:50 am to
MSM or Celsius but you have to use a surfactant otherwise it won't work.
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5264 posts
Posted on 5/11/21 at 8:52 am to
Try MSM Turf (metsulfuron methyl), 1/8 teaspoon (0.5 grams) per gallon of water with 2 teaspoons of spreader/sticker (surfactant). About $25 for a 2 oz bottle and that bottle should last 3 or 4 years. Give a few weeks to work, with follow up sprays as needed.

I have a little dollarweed in low spots but I don’t have an issue keeping it controlled/in check with MSM.
This post was edited on 5/11/21 at 3:27 pm
Posted by SlidellCajun
Slidell la
Member since May 2019
10342 posts
Posted on 5/11/21 at 9:01 am to
My yard has Bitcoin weed and that shite grows super fast
Posted by OysterPoBoy
City of St. George
Member since Jul 2013
34970 posts
Posted on 5/11/21 at 9:10 am to
You have to wait and treat on the dips.
Posted by RealityTiger
Geismar, LA
Member since Jan 2010
20437 posts
Posted on 5/11/21 at 9:11 am to
Go to Site One and get one jar of Celsius and a gallon of the surfactant. Mix one teaspoon of the Celsius to a gallon of water, and add 1 oz of the surfactant. Shake it up, and absolutely douse the dollarweed. Check on it in about 3-4 weeks, repeat. It should be turning yellow by that point. Make sure we don't have any rain within 3 or so days after you treat it. You may have to hit it another 2-3 times to get it.

That's what worked for me. Expect to have some bare spots in your yard where the dollarweed once was. You could just go buy some seed and some topsoil and get the grass to catch there, or just fertilize it.
Posted by Glock17
Member since Oct 2007
22377 posts
Posted on 5/11/21 at 9:46 am to
I hit some spots in my yard about 2 weeks ago with MSM and it's finally starting to yellow. I'll probably hit them again soon.
Posted by sosaysmorvant
River Parishes, LA
Member since Feb 2008
1307 posts
Posted on 5/11/21 at 10:08 am to
The MSM works well, but be patient. You won't see results for over a week.
Posted by gumbo2176
Member since May 2018
15009 posts
Posted on 5/11/21 at 11:26 am to
quote:

Dude my dollarweed will not die either


I don't have Dollar Weed but I do have an abundance of oxalis and that stuff is almost impossible to get rid of. It sets little root balls in the ground as plants mature and more plants come from those little balls.

I've sprayed it, dug it up and pulled as much as I could find, but there's always some left and it's just a matter of time before it comes back with a vengeance.

Nut grass and bush killer vine have nothing on oxalis
Posted by tigamike
Member since Jun 2005
5113 posts
Posted on 5/11/21 at 11:42 am to
Thanks for the input. Just ordered some MSM Turf and will give that a try
Posted by DVinBR
Member since Jan 2013
12948 posts
Posted on 5/11/21 at 1:21 pm to
(no message)
This post was edited on 5/11/21 at 1:22 pm
Posted by Cracker
in a box
Member since Nov 2009
17668 posts
Posted on 5/11/21 at 2:49 pm to
Battleship 2
Posted by TheBoo
South to Louisiana
Member since Aug 2012
4485 posts
Posted on 5/11/21 at 4:38 pm to
24d
Posted by damnstrongfan
St. George, Louisiana
Member since Dec 2009
2080 posts
Posted on 4/17/24 at 3:59 pm to
Thanks for all of the input. Love this board.
Posted by cgrand
HAMMOND
Member since Oct 2009
38636 posts
Posted on 4/17/24 at 4:19 pm to
quote:

Nut grass and bush killer vine have nothing on oxalis
oxalis as in wood sorrel (false shamrock)? Just pull it up

It disappears in the summer anyway
Posted by bkhrph
Lake Charles
Member since May 2022
168 posts
Posted on 4/17/24 at 4:38 pm to
Penoxsulam herbicide. A Ferti-lome granular product called “Dollarweed killer” at local nurseries.
It’s also in Bio-Advanced weed and feed granules at Lowe’s. If you want to fertilize your grass at the same time.
All okay with St. Augustine grass
Posted by Adam4848
LA
Member since Apr 2006
18937 posts
Posted on 4/17/24 at 4:47 pm to
I was about to post a thread. I sprayed atrazine+fertilome in February and it seemed to knock out most.

I sprayed some MSM last week and it hasn't even touched it.
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