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Unprecedented Freedom to Manage Weeds

Tenacity® Herbicide offers pre- and post-emergent control of more than 46 broadleaf weed and grass species, including crabgrass, ground ivy, yellow foxtail, yellow nutsedge and unwanted bentgrass.

Product Details

Tenacity Herbicide

Tenacity herbicide can be used for pre- and post-emergence control of more than 46 broadleaf weed and grass species. Its active ingredient, mesotrione, is based on a naturally occurring compound produced by the bottlebrush plant (Callistemon citrinus) that inhibits photosynthesis in susceptible plant species. It is absorbed by plants through the roots, shoots and leaves and distributed throughout the plant by both xylem and phloem translocation.

Active Ingredients:


HRAC/FRAC/IRAC Classification:

Group 27 Herbicide 



Label Details

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          Features & Benefits

          • Weeds controlled include crabgrass, ground ivy, yellow foxtail, yellow nutsedge and nimblewill. It also controls unwanted bentgrass.
          • Provides post-emergent control of tough-to-control weeds
          • Controls weeds at seeding reducing weed competition
          • Prevents and controls crabgrass pre or post up to four tillers
          • Eliminates weeds at seeding so new grass can flourish.


          The following are many of the most frequently asked questions about Syngenta's Tenacity herbicide. If you have additional questions please feel free to contact your Syngenta territory manager.

          How long before I can seed after making an application?
          Seeding can be done the same day as application; we recommend seeding as close to application time as possible for added performance benefits.

          How long after application before rainfall or irrigation can occur?
          Tenacity should be rain fast 1 hour after application. Rainfall and irrigation will be effective at this point.

          How many applications does it take to control crabgrass, bentgrass and Nimblewill?
          The label recommends 3 applications, 3 weeks apart. Any reseeding should be done at time of second application.

          What is the rate per gallon?
          The recommended application rate is 1 teaspoon/2 gal of water, with 3 teaspoons of a good quality NIS (non-ionic surfactant).

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