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Certainty herbicide - too hot for centipede? (Kyllinga)

Posted on 5/10/25 at 7:06 pm
Posted by meeple
Carcassonne
Member since May 2011
10835 posts
Posted on 5/10/25 at 7:06 pm
Before I drop $125 on this stuff, is it ok to apply if I get it down be next weekend, if I avoid putting it down during the hottest part of the day (90 deg)?

Have mats of kyllinga taking over centipede. I’ve used certainty in st Aug before, and it zapped it with the quickness.
Posted by bayoubengals88
LA
Member since Sep 2007
23479 posts
Posted on 5/10/25 at 7:47 pm to
Why not spend around $13 for a pack of Sedgehammer?
You’ll be fine applying it in the morning or late evening.
Posted by Loup
Ferriday
Member since Apr 2019
15676 posts
Posted on 5/10/25 at 8:06 pm to
quote:

Why not spend around $13 for a pack of Sedgehammer?
You’ll be fine applying it in the morning or late evening


This. I'm applying it tomorrow if the rain holds off.
Posted by meeple
Carcassonne
Member since May 2011
10835 posts
Posted on 5/10/25 at 8:17 pm to
Didn’t realize it world work as good.
Posted by ronk
Member since Jan 2015
7524 posts
Posted on 5/10/25 at 8:37 pm to
Check to see if pro sedge is cheaper. Same shite as sedgehammer. We used it one year because it was cheaper.
Posted by OceanMan
Member since Mar 2010
22705 posts
Posted on 5/11/25 at 8:17 am to
What I like about it is you don’t even really notice it working. It takes a while to work but doesn’t burn the shite out of everything
Posted by Earthquake 88
Mobile
Member since Jan 2010
3303 posts
Posted on 5/12/25 at 3:34 pm to
I’ve sprayed Certainty with Celsius WG when it was 100 degrees and it didn’t kill my yard. I’ve also sprayed SedgeHammer with Celsius WG in high heat with no problems.

I like those combos I listed above because it kills pretty much anything in my yard except my grass and it’s fine using it when it hot or cold.
Posted by DickTater
Geismar
Member since Feb 2013
162 posts
Posted on 5/13/25 at 9:46 am to
It’s certainty better than sledgehammer for all sedges?

Reason I ask is I have a bottle of Celsius Xtra- and just don’t think it works that well as perhaps using the two mixed separately…
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