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jwill37
LSU Fan
The Chuck
Member since Jan 2007
1356 posts

Need help killing nutsedge weeds
Completely renovated my landscaping and those damn things still came back with a vengeance. Any tips on what chemical will kill these things without killing all my plants. I’m about to lose my mind.


ronk
Member since Jan 2015
2916 posts

re: Need help killing nutsedge weeds
Just keep the sedgehammer off of your plants.


98eagle
Auburn Fan
Member since Sep 2020
1025 posts

re: Need help killing nutsedge weeds
I've used Ortho Nutsedge Killer from Home Depot in the premix spray bottle. Just sprayed it on the nutgrass a few years ago and it killed all of it on the first application, and did not harm my Zoyzia lawn.


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Drunken Crawfish
USA Fan
Crushing 'skis at Tobin's house
Member since Apr 2017
3221 posts

re: Need help killing nutsedge weeds
I have had good success with Image. I am trying certainty for the first time this year. Image usually starts working within a few days. Certainty takes a bit longer (it’s absorbed through roots not leaves) so I’ll report back. Certainty is cheaper per application than image.


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b-rab2
LSU Fan
N. Louisiana
Member since Dec 2005
12179 posts

re: Need help killing nutsedge weeds
Go ahead and buy a bottle of sedgehammer and a new 1 or 2 gallon sprayer and label it. Go to work after that.


Shotgun Willie
Member since Apr 2016
2374 posts

re: Need help killing nutsedge weeds
Sedgehammer but add a surfactant


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Member since 2001
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CarRamrod
USA Fan
Spurbury, VT
Member since Dec 2006
53345 posts

re: Need help killing nutsedge weeds
buy generic sedgehammer off ebay.


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gamecocks22
South Carolina Fan
SC
Member since Dec 2012
4892 posts

re: Need help killing nutsedge weeds
Sedgehammer as everyone has said, but I have had great luck with "Certainty".


Drunken Crawfish
USA Fan
Crushing 'skis at Tobin's house
Member since Apr 2017
3221 posts

re: Need help killing nutsedge weeds
quote:

Sedgehammer as everyone has said, but I have had great luck with "Certainty".


How long did it take you to see results with certainty?


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Hammond Tiger Fan
Vanderbilt Fan
Hammond
Member since Oct 2007
15633 posts

re: Need help killing nutsedge weeds
quote:

Go ahead and buy a bottle of sedgehammer and a new 1 or 2 gallon sprayer and label it. Go to work after that.


The problem I have with Sedgehammer is when you mix it you have to go ahead and use all of it when it's mixed. There's no way to save it for another time. Most of the time I'm looking to spot treat versus spraying large areas.


Puffoluffagus
LSU Fan
Savannah, GA
Member since Feb 2009
4997 posts

re: Need help killing nutsedge weeds
quote:

he problem I have with Sedgehammer is when you mix it you have to go ahead and use all of it when it's mixed. There's no way to save it for another time. Most of the time I'm looking to spot treat versus spraying large areas.


Yeah it is a downside. I'll probably switch to certainty once I use up my bottle of sedgehammer.

You do get better sedge control though if you broadcast spray due to sedges underground root system.


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