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Tenacity Turf Herbicide - 8 ounces (Packaging may vary)

4.5 4.5 out of 5 stars 8,849 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Weed Killers by Syngenta

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Tenacity Turf Herbicide

Purchase options and add-ons

Brand Syngenta
Item Weight 8 Ounces
Liquid Volume 8 Fluid Ounces
Item Form Liquid
Active Ingredients Mesotrione

About this item

  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in turfgrasses.
  • When applied as a pre-emergent, weeds absorb Tenacity during emergence from the soil.
  • Target pests: Barnyardgrass, Carpetweed, Chickweed, Clover, Crabgrass (large & smooth), Dandelion, Foxtail, Goosegrass, Henbit, Yellow Nutsedge, Purslane, Thistle, Wild Carrot and others
  • Active Ingredient: Mesotrione 40%
  • Date printed on bottle is Manufacture Date, not expiration. Shelf Life: 5-8 years from date of manufacture when properly stored. Keep out of direct sunlight and extreme temperatures

Customer ratings by feature

Easy to use
4.2 4.2
Accuracy
3.9 3.9
Value for money
3.9 3.9

Frequently bought together

$50.00 ($6.25/Fl Oz)
Get it as soon as Sunday, Mar 31
In Stock
Sold by SEJ Company LLC and ships from Amazon Fulfillment.
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$13.18 ($0.82/Fl Oz)
Get it as soon as Sunday, Mar 31
In Stock
Sold by Jamlyn-Supply and ships from Amazon Fulfillment.
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$13.99 ($1.75/Fl Oz)
Get it as soon as Sunday, Mar 31
In Stock
Sold by Bluewater Chemgroup and ships from Amazon Fulfillment.
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Tenacity Turf Herbicide - 8 ounces (Packaging may vary)
Syngenta Tenacity Turf Herbicide - 8 ounces (Packaging may vary)
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Price$50.00$50.99$39.99$49.99$69.99$39.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to use
4.2
4.1
4.1
4.2
4.1
4.3
Accuracy
3.9
3.6
3.6
4.2
4.1
4.0
Value for money
3.9
3.8
3.6
4.0
4.1
4.1
Sold By
SEJ Company LLC
Bluewater Chemgroup
Bluewater Chemgroup
Bluewater Chemgroup
Bluewater Chemgroup
Prosentyx, LLC
liquid volume
8 fluid ounces
8 fluid ounces
8 fluid ounces
16 fluid ounces
8 fluid ounces
active ingredients
Mesotrione
Mesotrione
Mesotrione
Mesotrione
Mesotrione
Mesotrione
form
Liquid
Spray
Liquid
Liquid
Liquid
Spray
weight
8 ounces
8.32 ounces
8 ounces
8.32 ounces
1 pounds
8 ounces

From the manufacturer

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About Us

Syngenta is a science-based agtech company. We are farmers around the world to grow safe and nutritious food. We will be the collaborative and trusted team in agriculture, providing seeds and crop protection innovations to enhance the prosperity of farmers, wherever they are.

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Tenacity

Tenacity Turf Herbicide - 8 ounces (Packaging may vary)


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Product Description

Tenacity Turf Herbicide - 8 ounces (Packaging may vary)

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
8,849 global ratings

Customers say

Customers like the performance and quality of the weed moss control agent. For example, they mention it's very effective, and it produces impressive results. Some appreciate the effect on grass, and speed. That said, opinions are mixed on value, color, ease of use, and appearance.

AI-generated from the text of customer reviews

446 customers mention317 positive129 negative

Customers like the performance of the weed moss control agent. They say it's very effective, impressive, and potent. Some say it works well in a tow behind tank sprayer. Customers also say it is awesome and works effortlessly.

"...It was a little slow and time consuming, but it was effective, and I didn't waste the tenacity or over apply it...." Read more

"...this product, it does work, and despite it working slow, it is powerful stuff, so follow the directions since they are specific to the weed you are..." Read more

"Works fast on grassy weeds but not so well on broad leaf so make sure you check to be sure it will address your specific weed problem or you'll be..." Read more

"...This feature is particularly beneficial for maintaining the integrity and health of the lawn...." Read more

365 customers mention269 positive96 negative

Customers like the quality of the weed moss control agent. They say that it kills a lot of other weeds in the process, and it does so to the root. Some customers also say that the product has great luck for killing crabgrass. Overall, customers are satisfied with the product's quality and performance.

"...Since this product kills alot of other weeds in the process, I have less weeds in my yard than I have ever had...." Read more

"...of the standout features of Tenacity Turf Herbicide is its selective herbicidal activity...." Read more

"...However, at this point, not a hint of weeds or weedy grasses...." Read more

"...It stops growing and eventually it turns brown and dries up, but it takes several weeks for the whole kill process to complete, even in hot,..." Read more

27 customers mention24 positive3 negative

Customers like the effect of the weed moss control agent on grass. They say bent grass dies within 3 weeks, crabgrass and weeds are currently dying, and it slowly kills them. Some customers also mention that it works a treat and no more creeping bent grass.

"...The lawn is thick, green with no signs of creeping bent grass! Several neighbors have stopped me and asked how is your yard so nice! :)..." Read more

"...However, the bentgrass slowly died and was completely eliminated after a second spraying...." Read more

"...It has been about two weeks and the grass looks stressed, but the Creeping Charlie is still growing strong...." Read more

"...time to work, but after the 3rd application 3 weeks apart, the nimbleweed is dead - not just white, totally dead and matted...." Read more

25 customers mention25 positive0 negative

Customers are happy with the speed of the weed moss control agent. They say it works quickly, is easy to use, and produces instant results after application. Customers also mention that the product is a slow starving selective herbicide that works well.

"Works fast on grassy weeds but not so well on broad leaf so make sure you check to be sure it will address your specific weed problem or you'll be..." Read more

"...I say this mostly because it's a slow, starving selective herbicide. Don't expect burn off or RoundUp-like results in 24 hours...." Read more

"...I used this process starting in August, achieved a good kill rate and now I'm beginning the re-seeding process." Read more

"...Easy to use, fast acting -plants start turning yellow in 5 days, and very effective. Highly recommend." Read more

162 customers mention60 positive102 negative

Customers are mixed about the value of the weed moss control agent. Some mention that the money was well worth it, while others say that it seems expensive. They also say it's challenging to figure out how much you need to use, resulting in a waste of time and money.

"...The Tenacity is expensive, $60 or so for 8 oz...." Read more

"...While this project took some time and exercised my patience, it was well worth it. I started in fall, and seeded in both fall and spring...." Read more

"...Bottle is expensive but it goes a long way. The syringe they provide is tough to use without knocking the bottle over or ripping the plunger out." Read more

"...Tenacity is expensive BUT is significantly CHEAPER and less labor intensive than the alternate solution killing Creeping Bentgrass!..." Read more

101 customers mention35 positive66 negative

Customers are mixed about the color of the weed moss control agent. Some mention that it has turned most wide-leaf weeds white, and crabgrass white. However, others say that it will turn areas white as it destroys crabgrass. Some customers also mention that the product bleaches their good grass.

"...It stays that way for a while. It stops growing and eventually it turns brown and dries up, but it takes several weeks for the whole kill process..." Read more

"...It has filled in immensely, like a carpet. Deep green. My neighbor's yards are still all spotty and full of weeds/weedy grasses...." Read more

"...It becomes more apparent after the 2nd application. It did cause whitening on my fescue, which does recover, and it did a little damage to my..." Read more

"...Bleaching, or white spots may randomly occur in the lawn. However, that may be worth it to get rid of large areas of crabgrass...." Read more

64 customers mention39 positive25 negative

Customers are mixed about the ease of use of the weed moss control agent. Some mention that it works well, the application is pretty straight forward, and the instructions are clear. Others say that it's tricky to use, cumbersome, and not very exacting when it comes to precise application.

"...Tenacity is expensive BUT is significantly CHEAPER and less labor intensive than the alternate solution killing Creeping Bentgrass!..." Read more

"...Though I appreciated it being included, I found it difficult to use being the bottle is small, and I almost spilled it a couple of times due to the..." Read more

"The product itself is easy to manage, prepare, and apply. I only spot treated for crabgrass, broad leaves, and clover...." Read more

"...This is expensive for small uses like mine, but well worth it. Easy to use, fast acting -plants start turning yellow in 5 days, and very effective...." Read more

38 customers mention22 positive16 negative

Customers are mixed about the appearance of the weed moss control agent. Some mention that their lawn looks great, while others say that it looks horrible, with white patches.

"...New grass immediately started filling in the spaces. It's like a brand new lawn. Will continue to use this product for as long as I'm able to buy it...." Read more

"...Yes, a bit unsightly but also quite satisfying to see Tenacity do its thing...." Read more

"...My grass is turning green again and looks great.Very happy with this product." Read more

"...The lawn looks rough going into summer, but I am very glad to see this stuff is finally dead...." Read more

This Stuff Works Great!
5 Stars
This Stuff Works Great!
Over the last several years I have noticed an infestation of some weird grass taking over my yard. After some research I discovered it is Bentgrass. From a distance Bentgrass looks like regular grass but up close it is a menace and it takes over. After further research I found the best thing to kill it is Tenacity. This spring I am doing a yard restoration by cleansing the grass of weeds, relocating some sprinklers, adding garden curbing as well as low voltage lighting  and then replanting the entire yard with a quality perennial ryegrass seed. So I bought Tenacity, a 4 gallon backpack sprayer, surfactant and blue marker dye. I didn't think the dye was that helpful. Here in the Northwest it had been wetter than normal with highs in the upper 40's but I was anxious to get started. I picked February 23rd to take on this invader so a couple days before that I mowed. Then on that 48 degree Sunday I carefully mixed all the chemicals into my sprayer and began. Just about the time I was finishing it began to drizzle rain and I thought this might be all for not because of the cool temps and light rain.A week later, no difference, 2 weeks - nothing, by the third week I could see significant change of color throughout the yard. Upon closer inspection it was obvious all the Bentgrass had been affected and was dying. It was also evident I had several other weed type grasses sprinkled throughout which they too were yellowing. But anywhere there was fine fescue or perennial ryegrass, it was as green as could be. It worked! The pictures I have included were taken 3.5 weeks after spraying.I had read about using Tenacity in warm temps but that would have meant me waiting until May or June to see 70 degrees so I decided to spray and see what happens. I think the most important thing was making sure it was actively growing which it had started to do in early February. In the future I will be able to identify any of these invasive grasses/weeds quickly and spot spray. Soon I will rent a dethatcher to clean out all the dead stuff and then spray Tenacity once again before I smooth the yards low spots and top dress the entire yard with topsoil and then finally replant. By summer I'm hoping to have a very nice looking yard. 
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