Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredphoinix | Staff posted May 21, 2025 11:10 AM
expiredphoinix | Staff posted May 21, 2025 11:10 AM

8-Oz Syngenta Tenacity Herbicide Concentrate (Clear)

+ Free Shipping

$45

$70

35% off
Amazon
90 Comments 46,445 Views
Visit Amazon
Good Deal
Save
Share
Deal Details
Update: This popular deal is still available.

Amazon has 8-Oz Syngenta Tenacity Herbicide Concentrate (Clear, 46256) on sale for $45.09. Shipping is free.

Home & Garden Supply via Walmart has 8-Oz Syngenta Tenacity Herbicide Concentrate (Clear, 46256) on sale for $45.09. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Key Features:
  • Eliminates weeds at seedlings so new grass can flourish.
  • Tenacity is the only residential-approved herbicide that selectively removes both nimblewill and bentgrass. Plus, it controls over 40 dicot and monocot species, including:Crabgrass, Clover, Goosegrass, Yellow Nutsedge, Windmillgrass, Ground Ivy, yellow foxtail, and oxalis. Tenacity herbicide provides unprecedented freedom to manage weeds, both broadleaves and grasses, without limiting other key aspects of turf management. With its proprietary active ingredient, mesotrione, Tenacity herbicide can be used both as a pre-emergence and post-emergence herbicide.

Editor's Notes

Written by RevOne | Staff
  • About this Deal:
    • Our research indicates that this deal is $16.00 less (26.19% savings) than the next best available price from a reputable merchant with prices starting at $61.09 at the time of this posting.
  • About this Product:
    • Rated 4.4 out of 5 stars at Amazon based on over 6,750 customer reviews.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Update: This popular deal is still available.

Amazon has 8-Oz Syngenta Tenacity Herbicide Concentrate (Clear, 46256) on sale for $45.09. Shipping is free.

Home & Garden Supply via Walmart has 8-Oz Syngenta Tenacity Herbicide Concentrate (Clear, 46256) on sale for $45.09. Shipping is free.

Thanks to Deal Hunter phoinix for sharing this deal.

Key Features:
  • Eliminates weeds at seedlings so new grass can flourish.
  • Tenacity is the only residential-approved herbicide that selectively removes both nimblewill and bentgrass. Plus, it controls over 40 dicot and monocot species, including:Crabgrass, Clover, Goosegrass, Yellow Nutsedge, Windmillgrass, Ground Ivy, yellow foxtail, and oxalis. Tenacity herbicide provides unprecedented freedom to manage weeds, both broadleaves and grasses, without limiting other key aspects of turf management. With its proprietary active ingredient, mesotrione, Tenacity herbicide can be used both as a pre-emergence and post-emergence herbicide.

Editor's Notes

Written by RevOne | Staff
  • About this Deal:
    • Our research indicates that this deal is $16.00 less (26.19% savings) than the next best available price from a reputable merchant with prices starting at $61.09 at the time of this posting.
  • About this Product:
    • Rated 4.4 out of 5 stars at Amazon based on over 6,750 customer reviews.
  • About this Store:
  • Additional Notes:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+60
Good Deal
Visit Amazon

Price Intelligence

Model: Syngenta 46256 Tenacity 8oz Herbicide, Clear

Deal History 

Sale Price
Slickdeal
  • $NaN
  • Today

Leave a Comment

Unregistered (You)

Top Comments

DelightfulSink3147
1 Posts
14 Reputation
Tenacity herbicide is generally not considered safe for bermuda grass. The product label specifically cautions against its use on bermudagrass, as it can cause damage or even kill it
JesseE9088
146 Posts
108 Reputation
You can get the off brand version of this for $34 with S&S and a coupon.

https://a.co/d/5HAS72K
mehoff88
680 Posts
86 Reputation
So you really think you just put this in a sprayer and it''s gone in 2 seconds because it's only 8oz?? OR do you think just maybe it is concentrated and you ratio it with water?? Idiocracy is turning into real life.

89 Comments

Sign up for a Slickdeals account to remove this ad.

May 22, 2025 05:33 AM
680 Posts
Joined Dec 2011
mehoff88May 22, 2025 05:33 AM
680 Posts
Quote from WeiW8847 :
🧐 I was like, what are the F 8oz herbicides worth, around $40ish?
So you really think you just put this in a sprayer and it''s gone in 2 seconds because it's only 8oz?? OR do you think just maybe it is concentrated and you ratio it with water?? Idiocracy is turning into real life.
2
May 22, 2025 10:30 AM
1,195 Posts
Joined Oct 2008
dronewolfMay 22, 2025 10:30 AM
1,195 Posts
Quote from SlickSam240 :
Can this be combined with bug liquid spray?
Yes mix it with bifen and imidacloprid and you should be set
1
May 22, 2025 10:40 AM
652 Posts
Joined Nov 2004
krawfoMay 22, 2025 10:40 AM
652 Posts
Does Tenacity work very well as a POST-EMERGENT against poa annua?
May 22, 2025 11:21 AM
1,308 Posts
Joined Nov 2004
HydraridazMay 22, 2025 11:21 AM
1,308 Posts
can they kill poison ivy
May 22, 2025 03:01 PM
116 Posts
Joined Jul 2015
dlutz88May 22, 2025 03:01 PM
116 Posts
I bought a house a few years back from somebody that never took care of the yard. The back lawn is pretty big, and it's made up almost entirely of various kinds of weeds.

Could I use this stuff in a sprayer to annihilate everything in my yard, so that I can start over 😅
May 22, 2025 03:22 PM
297 Posts
Joined Nov 2006
qvpMay 22, 2025 03:22 PM
297 Posts
Newbie question.

What's the best way to apply to cover .5 acre?
Definitely not a pump sprayer...
Mix a few gallons and hook up to a Ryobi EZClean sprayer?
May 22, 2025 05:38 PM
415 Posts
Joined Jan 2017
wiseghostMay 22, 2025 05:38 PM
415 Posts
Quote from dlutz88 :
I bought a house a few years back from somebody that never took care of the yard. The back lawn is pretty big, and it's made up almost entirely of various kinds of weeds.

Could I use this stuff in a sprayer to annihilate everything in my yard, so that I can start over 😅
No, this is more for weed control and prevention, not to kill everything. Mesothrione will not kill the grass, only weeds.

Sign up for a Slickdeals account to remove this ad.

May 23, 2025 02:55 PM
1,108 Posts
Joined Feb 2016
TheBigAlphaMaleMay 23, 2025 02:55 PM
1,108 Posts
Quote from CashCroc :
Is this ok to use on Bermuda grass? Some reviews seem to say no, others appear to have used it successfully.
Not on Bermuda. Even in January when it's mostly dormant. Depending on what weeds you got in your Bermuda I recommend preemergent prodiamine 65wdg Oct 1st, Jan 1st April 1st (depending on your location those dates vary a little) and in between mixing 24d 1oz per gallon of water per 1k Sq ft. With 1.5 Oz of generic regular cheap dish soap. If your into Bermuda lawns and wanna get 98% weed free you can check out msma and msm turf (cheap effective but you really have to do your math correctly and know what your doing with msm turf bc or can kill trees and your Bermuda if you don't know what your doing)... All these things are cheap when you do the math for per application but last years in your garage. You can also just do spectracide weed stop FOR lawns hose in sprayer for $5 to 8 bucks approximately 6 times a year and it will get you mostly weed free. Then you can get into dicamba, certainty, sledgehammer for spot treating specific things and get that golf course lawn.
May 23, 2025 03:27 PM
1,108 Posts
Joined Feb 2016
TheBigAlphaMaleMay 23, 2025 03:27 PM
1,108 Posts
Quote from willygee :
i've been battling some stubborn crabgrass for YEARS! i bought something similar to this but wasnt particularly effective (i'm in south where st augustine is common). thinking to hire like tru green or something just to get lawn into decent shape then discontinue but seeing if there are thoughts on those type of lawn services?
Preemergent like crazy. Every 4 weeks. So for example Oct 1st lesco 007 granules, then Nov 1st prodiamine, December 1st maybe Dithyopyr. Then circle back to 007 January 1st, etc all the way thru May 1st application. Bag mow every time to get most of the crab grass seeds. Then the next year go 6 to 8 weeks between preemergent applications and still bag mow. Then the next year you might be able to go 8 to 12 weeks between preemergent applications.
May 23, 2025 03:58 PM
1,108 Posts
Joined Feb 2016
TheBigAlphaMaleMay 23, 2025 03:58 PM
1,108 Posts
Quote from dlutz88 :
I bought a house a few years back from somebody that never took care of the yard. The back lawn is pretty big, and it's made up almost entirely of various kinds of weeds.Could I use this stuff in a sprayer to annihilate everything in my yard, so that I can start over 😅
What kind of grass is back there? You'd be surprised how well some grasses will bounce back with pre/post weed treatment, fertilizer, aeration, water and 2 x a week mowing. But glyphosate 41% is typically what's used to kill off a lawn and start over.
May 23, 2025 04:00 PM
1,108 Posts
Joined Feb 2016
TheBigAlphaMaleMay 23, 2025 04:00 PM
1,108 Posts
Quote from qvp :
Newbie question.What's the best way to apply to cover .5 acre? Definitely not a pump sprayer... Mix a few gallons and hook up to a Ryobi EZClean sprayer?
4 gallon battery back pack sprayer. Ridgid 18v, ryobi 40v are the 2 I'd recommend.
May 25, 2025 11:59 AM
82 Posts
Joined Oct 2017
mksoniMay 25, 2025 11:59 AM
82 Posts
Quote from dronewolf :
Yes mix it with bifen and imidacloprid and you should be set
Where do you apply all 3 together? I am curious.
May 25, 2025 04:33 PM
5,198 Posts
Joined Nov 2003
gergevMay 25, 2025 04:33 PM
5,198 Posts
all you have to do is scroll down on the link to find it cheaper

https://www.amazon.com/Liquid-Har...B09JL4ZXQZ


One of these will last you 5 years if you have yard size like mine 1/3 acre. Directions say to use 0.5 tsp per gallon, but I used 1 tsp and also may put in 1-2 tbs of tryclopyr.


Wait a couple weeks (don't rush it) to see what damage you have done to the weeds, then spray again. That should do it for the season. It will bleach fescue but it will recover and turn green again. Tryclopyr apparently not only enhances the weed eradication but also lowers the grass bleaching.


Mesotrione, the generic active ingredient in tenacity, is a good pre-emergent for dandelions.
Fun facts
In 1977, a biologist at the Stauffer Chemical Company's California Western Research Center (bought out by Syngenta) noticed that few weeds grew near the bottlebrush plants (Callistemon citrinus) in his garden.
He investigated the soil around the plants and isolated a chemical, leptospermone, that was responsible for the weed suppression.
Leptospermone, while naturally occurring, wasn't suitable for commercial herbicide production, but its structure served as a basis for developing more potent synthetic herbicides, including mesotrione.

Compost, compost, compost and grass will crowd out your weeds.


I recomment the around the yard forums.
May 25, 2025 04:33 PM
496 Posts
Joined Nov 2004
gonjdevilsMay 25, 2025 04:33 PM
496 Posts
Quote from noask :
Will it kill chameleon plant? Not mentioned in the product review.
Nothing, and I mean nothing, kills Chameleon Plant.

Sign up for a Slickdeals account to remove this ad.

May 25, 2025 04:35 PM
5,198 Posts
Joined Nov 2003
gergevMay 25, 2025 04:35 PM
5,198 Posts
Quote from SlickSam240 :
Can this be combined with bug liquid spray?
'bugs' help your lawn be healthy

Leave a Comment

Unregistered (You)

Popular Deals

Trending Deals