Tenacity Weed Killer Review & Buyer’s Guide for 2020

Tenacity Weed Killer Review

The Weed Wizard

tenacity herbicide bottle
Preventative Features
Treatment Area Per Container
Ease of Use
Rainstop Features
Value

Summary

If you’re looking for an effective way to manage weeds problems that are plaguing your lawn, then you’re off to a great start with considering the Tenacity weed killer. Tenacity herbicide is a highly potent systemic herbicide that you can use for pre and post-emergent selective contact and residual control of more than 46 broadleaf and grassy weed species in turfgrass. 

4.9

Our Tenacity weed killer review and buyer’s guide features an amazing herbicide that will effectively kill weeds and prevent them from quickly returning.  If you’re looking for an effective way to manage weeds problems that are plaguing your lawn, then you’re off to a great start with considering the Tenacity weed killer. Tenacity herbicide is a highly potent systemic herbicide that you can use for pre and post-emergent selective contact and residual control of more than 46 broadleaf and grassy weed species in turfgrass. 

tenacity weed killer used on lawn
Tenacity weed killer is a great option for weed control on your lawn.

Thanks for visiting The Weed Wizard, a leading weed control resource for anyone searching for the best tools, weed killers, and most effective herbicides or natural organic formulas for their lawn and gardens. With our reviews and guides, you can transform your yard, flower beds, and gardens into the neighborhood’s envy by killing and preventing those annoying weeds that seem to sprout everywhere.

When it comes to lawn and landscape care in 2020, we’re here to help with the best, to-the-point guides, tools, and weed killer ratings for a healthy landscape, and in this particular case, we’ll explore Tenacity Herbicide and answer many common FAQs. By tending to those ugly weeds with useful herbicides, all eyes will remain on your well-groomed lawn and gardens.

Sale
Tenacity Turf Herbicide - 8 ounces
  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in...
  • 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,...

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


How Does Tenacity Work?

Manufactured by Syngenta, the Tenacity weed killer’s active ingredient is mesotrione, derived from a naturally occurring compound produced by the bottlebrush plant (Callistemon citrinus).

Mesotrione works to inhibit photosynthesis in target plant species, so they lose the ability to grow. Unlike contact herbicides that only kill the section of the plant it comes in contact with, Tenacity is a systemic herbicide. Systemic means it gets absorbed and moved throughout the entire plant’s system, resulting in the whole plant’s death. 

With contact herbicides, roots may survive, and the plant may grow again. But with Tenacity, the eradication is permanent. As we mentioned, Tenacity prevents photosynthesis in plants to prevent them from growing. This product is absorbed via the roots, shoots, and leaves of the weed then it gets distributed throughout the plant by both xylem and phloem translocation.

Weed Killer Warning! Always read the manufacturer’s recommendations when choosing and applying any chemical herbicides to your lawn or landscape beds. Wear protective gloves and remember that some weed killer applications can kill flowers, grasses, and shrubs.


What is Tenacity Weed Killer Herbicide?

Tenacity herbicide is a highly-effective weed killer that offers pre- and post-emergent control over 46 broadleaf weed and grass species. These include crabgrass, dandelion, ground ivy, yellow foxtail, henbit, yellow nutsedge, and unwanted bentgrass.

Mesotrione is an active ingredient in Tenacity herbicide that prevents unwanted weeds from making their way above the soil’s surface, as well as a treatment after these plants have already appeared above the soil. Tenacity is also a selective herbicide, so it only affects susceptible plant species it comes in contact with. Moreover, Tenacity is a systemic weed killer, eliminating whole plants, and not just the part that gets treated.

Tenacity herbicide has been commercially available since 2008, and its formulations include soluble concentrate (SC) and Impregnated fertilizer. The product has a long shelf life ranging between 5 to 8 years from the date of manufacture, given that you store it properly and keep the container out of direct sunlight and extreme temperatures.


Is Tenacity a Selective Herbicide?

Yes, Tenacity is a selective herbicide. Selective means it doesn’t kill all lawn and grass types, as opposed to a non-selective herbicide that kills any plant it comes in contact with, including the grass you actually want to keep.

Sale
Tenacity Turf Herbicide - 8 ounces
  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in...
  • 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,...

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API

We’re an affiliate. We hope you love the products we recommend! Just so you know, we may collect a share of sales or other compensation from the links on this page. Thank you for using our links. We appreciate it!


Is Tenacity a Pre or Post-Emergent Herbicide?

Additionally, Tenacity is both a pre- and post-emergent herbicide. Consequently, Tenacity offers you the best of both worlds; control of weeds before they emerge from the soil’s surface and after they’ve sprouted above the soil. Tenacity is an excellent herbicide option for homeowners looking to control various plants, including chickweed, clover, crabgrass, dandelion, foxtail, henbit, and nutsedge.


Who Manufactures Tenacity Weed Killer Herbicide? 

Tenacity herbicide is manufactured by Syngenta – a global company with a headquarters located in Switzerland. It has 28,000 employees in 90 countries working to transform the way crops are grown and protected. 

Syngenta applies world-class science in the company’s two core businesses: protecting crops and improving seeds. They provide farmers with technologies, knowledge, and services necessary to supply the world with better food, feed, fiber, and fuel. More so, Syngenta has the most productive R&D in the industry, supported by breakthrough ideas coming from the company’s 5000 scientists and 400+ collaborations with research institutes, universities, and commercial organizations.

The company’s budget for Research and Development is 1.3 billion dollars, which shows their devotion to safely addressing farmers’ and consumers’ needs. Tenacity herbicide is one product on Syngenta’s long list of crop protection products globally, including Acuron, Callisto, and Lumax.

tenacity features and benefits courtesy syngenta
Tenacity features and benefits per Syngenta.

Why is Tenacity Weed Killer So Popular for Homeowners and Gardeners?

There are several reasons why the Tenacity weed killer is widely used among homeowners and gardeners. 

For starters, Tenacity is a selective, systemic herbicide that’s capable of providing pre- and post-emergence control of grass and broadleaf weed in many cold- and warm-season turf species, such as riding your rough of bentgrass. Additionally, you can use Tenacity on already-established or newly seeded turf.

tenacity selective herbicide used on lawn
Tenacity is a selective herbicide and great for use on lawns.

The effects of applying Tenacity herbicide also manifest relatively fast. Once absorbed, Tenacity quickly travels throughout the whole plant, and the growth of the target weed is suppressed soon after contact since photosynthesis gets inhibited. From there, it’ll only take about 2 to 3 weeks for the plant to die.

Another impressive aspect of using the Tenacity weed killer is that you can safely tank mix it with other herbicides. These include Barricade®, dicamba, carfentrazone, triclopyr, atrazine, simazine, s-metolachlor, and numerous three-way phenoxy herbicides. 

Such combinations are popular among turf managers as they help broaden the weed control spectrum and enhance the efficiency of weed control compared to single-product applications.

Next Read: Certainty Herbicide Review & Buyer’s Guide

Sale
Tenacity Turf Herbicide - 8 ounces
  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in...
  • 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,...

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


What is on the Tenacity Herbicide Label?

Besides the product’s name, the first thing you’ll notice on the Tenacity herbicide label is a bold ‘KEEP OUT OF REACH OF CHILDREN’ caution. The label’s front side also includes information about the product’s ingredients, where mesotrione 40% is indicated as the active component.

The rest of the Tenacity herbicide label contains crucial information regarding precautions and safety of use. There are first aid instructions on what to do if the product gets on your skin, in your eyes, if you inhale it, and if you swallow it.

The label also emphasizes that you carry the product container or label when calling a poison control center or doctor or going for treatment. There’s even a hotline number (1-800-888-8372) for 24-hour medical emergency assistance or chemical emergency assistance. Moreover, the label includes information about the proper personal protective equipment (PPE) you need to wear when applying Tenacity herbicide and some materials that are chemically resistant to this product.

Weed Killer Warning! Always read the manufacturer’s recommendations when choosing and applying any chemical herbicides to your lawn or landscape beds. Wear protective gloves and remember that some weed killer applications can kill flowers, grasses, and shrubs.


Is Tenacity a Glyphosate Herbicide?

tenacity acting fast to kill weeds
Tenacity is a fast-acting weed control herbicide.

No, Tenacity is not a glyphosate herbicide. Although both Tenacity and glyphosate are broad-spectrum systemic herbicides, they differ in composition and mechanism of action.

On one side, Tenacity features mesotrione, which is an organic compound containing sulfur. Mesotrioneis a member of the benzoylcyclohexane-1,3-dione family of herbicides, which are chemically derived from a natural phytotoxin obtained from the Californian bottlebrush plant. This compound works by competitive inhibition of a specific enzyme in the biochemical pathway that converts tyrosine to plastoquinone and alpha-tocopherol. 

On the other side, glyphosate is an organophosphorus herbicide that prevents the plant from making specific proteins that play a vital role in plant growth. Glyphosate disrupts the pathway of a particular enzyme in the shikimic acid pathway, which is essential for the life of plants and some microorganisms. 


What Are the Tenacity Weed Killer Herbicide Instructions?

The instructions for applying Tenacity herbicide vary according to the reason of use as follows:

  • Pre-emergence Application – Apply Tenacity at 4 to 8 fl. oz. per acre in at least 30 gallons of water per acre before weed seed germination.
  • New Seedings – Apply Tenacity at 5 to 8 fl. oz. per acre in at least 30 gallons of water per acre before seeding or post-seeding of tolerant turfgrass species except for fine fescue as it may reduce the density of these seedings. Apply at grass seeding or close to seeding for best results. 
  • Post-emergence Application – Apply Tenacity at 4 to 8 fl. oz. per acre in at least 30 gallons of water per acre with a NIS type surfactant. A repeat application at two to three weeks may be required for adequate weed control. 
  • Control of bentgrass (Agrostis spp.) – Apply Tenacity at 5 fl. oz. per acre in at least 30 gallons of water per acre at two to three-week intervals for up to three applications with a NIS surfactant.

Weed Killer Warning! Always read the manufacturer’s recommendations when choosing and applying any chemical herbicides to your lawn or landscape beds. Wear protective gloves and remember that some weed killer applications can kill flowers, grasses, and shrubs.


When Are You Supposed to Use Tenacity Herbicide? 

Tenacity herbicide offers both pre- and post-emergence control of weeds. This means you can use it as a preventative measure to keep unwanted weeds from emerging through the soil’s surface, as well as a treatment after these plants have already appeared above the soil. 

You can also use Tenacity on already-established or newly seeded turf, giving you a solution to weed problems in any stage of growth.


Where Can You Buy Tenacity Weed Killer?

Now that you know how to use the herbicide and weed control formula, you might want to grab some to use in your backyard or garden. Generally, you’d be able to find the turf herbicide in various places, from department stores to home improvement suppliers like Home Depot and Lowes.

However, Tenacity Turf Herbicide is also available for sale online through Amazon. Getting the herbicide through Amazon won’t only save you the hassle of driving to the store, but it’s also included in Amazon Prime, so it ships for free and is delivered in about 10 hours!

Sale
Tenacity Turf Herbicide - 8 ounces
  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in...
  • 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,...

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


How Long Does Tenacity Take to Kill Weeds? 

One of the benefits of applying Tenacity herbicide is its relatively fast action. Once absorbed, Tenacity quickly moves throughout the entire plant, and the growth of the target weed is suppressed soon after contact since photosynthesis is stopped. 

After application, it’ll take about 2 to 3 weeks for the plant to die. As a pre-emergent, the effects of Tenacity will last around 30 days. Be sure, however, to not use a non-ionic surfactant (NIS) when applied as a pre-emergent.

If you’re planning on seeding, you can do it the same day as the application. Seeding as close to application time as possible boosts performance benefits. 

As for rainfall or irrigation, Tenacity should be rainfast after 1 hour from applying. Rain and irrigation can be helpful then as it promotes the absorption of the product. 


What Do the Tenacity Herbicide Reviews Say?

Generally speaking, reviews of the Tenacity weed killer are on the positive side.

The majority of homeowners reported that Tenacity targets and kills weeds while leaving the rest of the grass in the yard intact – reliably keeping the promise of its selective mode of action. One thing that a lot of reviewers emphasized (and one that you should remember) is watering after the product dries on the plant so that the plant takes it in. 

They mentioned that spraying alone without rain or irrigation will prolong the period you have to wait for its effect. Granted, most customers weren’t exactly thrilled by the price point of the Tenacity herbicide. Still, then again, they were willing to pay for it since no other chemical can kill weed grasses and leave the harmless plants alone as efficiently as this product can.

Many reviews also mentioned that the performance of the Tenacity herbicide is superior to other methods such as Roundup and reseeding.


What Weeds Will Tenacity Kill?

As we mentioned before, Tenacity provides control of more than 46 broadleaf weed and grass species in turfgrasses. Here’s a list of weeds that Tenacity will kill:

  • Barnyardgrass
  • Creeping Bentgrass
  • Annual Bluegrass
  • Buckhorn Plantain
  • Buttercup
  • Carpetweed
  • Common Chickweed
  • Mouse-ear Chickweed
  • Large Hop Clover
  • White Clover
  • Large Crabgrass
  • Smooth Crabgrass
  • Southern Crabgrass
  • Curly Dock
  • Common Lambsquarter
  • Burnt Lawn 
  • Tufted Lovegrass
  • Marestail
  • Nimblewill
  • Yellow Nutsedge
  • Catsear Dandelion
  • Common Dandelion
  • Florida Betony
  • Florida Pusley
  • Yellow Foxtail
  • Galinsoga
  • Goosegrass
  • Ground Ivy
  • Healall
  • Henbit
  • Oxalis
  • Redroot Pigweed
  • Smooth Pigweed
  • Common Purslane
  • Shepherd’s Purse
  • Pale Smartweed
  • Pennsylvania Smartweed
  • Persian Speedwell
  • Purslane Speedwell
  • Sowthistle
  • Swinecress
  • Canada Thistle
  • Verbena
  • Wild Carrot
  • Wild Violet
  • Windmill grass
tenacity clover removal before and after
Tenacity clover removal before and after via Syngenta website.
tenacity kentucky blue grass removal before and after
Tenacity kentucky blue grass removal before and after via Syngenta website.
tenacity ryegrass removal before and after
Tenacity ryegrass removal before and after via Syngenta website.

Is Tenacity Weed Killer Better than Roundup?

For most homeowners, gardeners, and turf managers, Tenacity is the better herbicide. There are a few motives for this, but the main reason can be summed up in one word: selectivity.

Unlike Tenacity, Roundup is a non-selective, systemic herbicide. This means it kills all types of plants it comes in contact with (except for plants that have been selectively bred to resist the herbicide). As a result, gardeners and landscapers who apply Roundup have to be careful not to get the herbicide on the harmless plants they want to keep. On the other hand, Tenacity herbicide works selectively. It kills weeds without harming grass and other desirable plants. 

Using Tenacity, you won’t have to tread carefully when applying the treatment on your lawn.

Sale
Tenacity Turf Herbicide - 8 ounces
  • Tenacity is a systemic pre-emergence and post-emergence herbicide for the selective contact and residual control of weeds in...
  • 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,...

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


Final Thoughts and Other Selective Herbicides Like Tenacity

Tenacity weed killer will effectively kill weeds and prevent them from quickly returning.  As discussed, if you’re looking for an effective way to manage weeds problems that are plaguing your lawn, then you’re off to a great start by considering the Tenacity weed killer. Tenacity herbicide is a highly potent systemic herbicide that you can use for pre- and post-emergent selective contact and residual control of more than 46 broadleaf and grassy weed species in turfgrass. 

Thanks for visiting The Weed Wizard, a leading weed control resource for anyone searching for the best tools, weed killers, and most effective herbicides or natural organic formulas for their lawn and gardens. With our reviews and guides, you can transform your yard, flower beds, and gardens into the neighborhood’s envy by killing and preventing those annoying weeds that seem to sprout everywhere.

Below are additional non-selective herbicides you may want to consider in addition to Tenacity.

Bestseller No. 1
Southern Ag Amine 2,4-D WEED KILLER, White Bottle
Selective Broadleaf Weed Control
$17.09
Bestseller No. 2
Triple Threat Selective Weed Killer Herbicide for...
EASY TO USE HERBICIDE. Dilute as needed and then spray on the affected area.
$39.95
Bestseller No. 3
ALLIGARE 2,4 D Amine Herbicide 2.5 Gallon-...
2,4-D Amine 46.8%; Mix 1-2 ounces of 2 4-D Amine per gallon of water.
$55.95

Last update on 2020-11-19 / Affiliate links / Images from Amazon Product Advertising API


Video on Tenacity, the best DIY Herbicide for your lawn.

More Tenacity Weed Killer Review FAQs

For your convenience and review, below are more Tenacity herbicide FAQs per the Syngenta website.

tenacity weed killer frequently asked questions 1 of 3
tenacity weed killer frequently asked questions 2 of 3
tenacity weed killer frequently asked questions 3 of 3
Tenacity weed killer frequently asked questions via the Syngenta website.

error: