Tenacity Herbicide is a great product, but the two products listed above with Mesotrione 40% are more economical.
Product Information
Tenacity herbicide will allow lawns to look well from the beginning. Tenacity can be applied to existing weeds at seeding and provide residual control to continue keeping lawns and turfs looking good. It can be used to remove crabgrass, nimbleweed, bentgrass and other difficult to control weeds. It removes broadleaf weeds such as clover, dandelion, and chickweed. See label for a complete list.
Tenacity is a systemic herbicide used in cool season turf and is safe to use in newly seeded and established turf. It has a wide window of application. Two applications are needed for control of listed weeds as a post-emergent treatment.
As a pre-emergent and post emergent herbicide it will control 46 weeds and grass species (see label for a complete list). Tenacity is classified by EPA as a "Reduced Risk" product compared to other herbicides. It is naturally derived from the bottlebrush plant.
- Can be applied prior to, at, or after seeding of tolerant turfgrasses.(See label for timing of applications of seedling turf)
- Removes creeping bentgrass from roughs and approaches as well as bluegrass from roughs.
- Ideal for renovations
Tenacity's Unique Mode Of Action
The active ingredient, Mesotrione curtails photosynthesis by inhibiting a plant enzyme called HPPD. It also prevents carotenoid formation in susceptible plants. Without this carotenoid formation, chlorophyll and cell membranes are destroyed and the leaves are white or bleached with resulting death of the plant. After the susceptible  plant absorbs, Tenacity Herbicide will work in two to three weeks.
Turfgrass Species
| Species | Rate Per Acre |
| Kentucy bluegrass | 5-8 oz |
| Centiepedegrass | 5-8 oz |
| Tall Fescue | 5-8 oz |
| Perennial ryegrass | 5 oz |
| Fine Fescue | 5 oz |
| St Augustinegrass | 4 oz |
Tenacity -Tank Mixed With Other Herbicides
Tenacity can be tank mixed with Prodiamine 65 WDG (same as Barricade) or Resolute , dicamba, carfentrazone, triclorpyr, atrazine, simazine, s-metolachlor, bentazon, and several three-way phenoxy herbicides. Combinations can help turf managers broaden the weed control spectrum or improve the level of weed control over single-product applications.
More Mesotrione 40% Herbicides
| Packaging | 8 oz |
|---|---|
| Product Label | Tenacity Herbicide Label |
| SDS | Tenacity Herbicide SDS |
| More PDF's | N/A |
| Target Pest | 46 weeds and grass species (see label for a complete list) |
| Active Ingredient (s) | Mesotrione 40% |
| For Use : |
|
| Yield | Acre 5 to 8 fluid ounces per acre wit 20 gallons of water, Spot treatments: 1 teaspoon + 1 teaspoon of a surfactant in 2 gallons of water per 1,000 sq ft |
| Mixture|Application | See label for use rates |
| Application | See label for use rates1 teaspoons in 2 gallons of water per 1,000 sq ft |
| Retreatment | twice on listed weeds as post-emergent treatment |
| Shipping Restrictions | N/A |
| More Instructions | What are some of the unique benefits of Tenacity herbicide?Tenacity has pre- and post-emergence activity on 46 dicot and monocot weed species. It can selectively control perennial monocots such as bentgrass and nimblewill and annuals such as crabgrass and goosegrass in many turfgrass species. Tenacity can be applied at the seeding to prevent weed germination and allow the turfgrass species to establish without weed competition. |
