Tenacity Turf is a powerful herbicide that delivers selective contact and residual control of weeds, so you can achieve the Level of Excellence you deserve.

The Tenacity is perfect for use on golf courses, sports fields, and other recreational areas. It’s also safe for use on residential lawns, so you can keep your home looking sharp too. Apply Tenacity as a pre-emergent or post-emergent for unbeatable weed control.

With Tenacity Turf Herbicide, you can easily get rid of any unwanted pests and have a beautiful lawn all season long. This herbicide is specially formulated with mesotrione to target a wide variety of weeds, so you can rest easy knowing that your yard is well taken care of.

This long-lasting product effectively kills broadleaf weeds and grasses, so your lawn remains healthy and lush all season long. Plus, it’s safe for use on both warm and cool-season turfgrasses, so you can apply it year-round.

Special Features

  • Dual-mode of action
  • Long-lasting residual control
  • Safe for use on residential lawns and golf courses, sports fields, sod farms, parks, cemeteries & commercial landscapes

My Findings

I have been using Tenacity Turf Herbicide for the past few summers now, and it’s my go-to weed killer. The bottle itself has lasted me up to 3 years, but I use one 8 oz. bottle every season.

I have used this product just as directed on my St Augustine grass lawns, and it works wonders. The only weeds that I still see, after using Tenacity, are the ones that were missed and those who come up yearly as a result of seeds in the soil. This is one of the most economical products I’ve used for weed control because it not only kills current weeds/grass but also prevents future growth as well.


The active ingredient in Tenacity Turf Herbicide is mesotrione, which can cause damage to turf when used pre-emergent. The product label does state that it may be applied post-emergent without irrigation within 24 hours, and it is labeled to kill clovers and dandelions.


How should I store this product?

Store in a cool, dry place away from heat or open flame. Shelf life is three years when stored properly.

Is Tenacity safe for my pets?

No, keep all pets off the lawn until it has been watered, but keep children and pets out of treated areas until dry. Safe to re-enter when dry.

What is the coverage area?

1 quart covers 500 sq ft. 1 gallon covers 4,000 sq ft. 5 gallons covers 20,000 sq ft – you will need a measuring cup and a funnel to measure out this amount.

When can I water the treated grass after applying Tenacity Turf Herbicide?

24 hours after application, but before it rains. When applying to St Augustine grass lawns, wait at least 3 days after the last mowing.

How should I apply Tenacity?

Use a hand pump sprayer or backpack sprayer (available for purchase). Use 1 oz per 1 gallon of water to treat 10 sq ft, or use 1 oz per 50 gallons of water to treat 500 sq ft.

Is Tenacity safe for my cotton, peanut, soybeans, and tomato plants?

Yes, it is labeled for these crops. You will need to wait until the day after your harvest before re-entering the treated area.

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