Certainty Turf Herbicide

Certainty Turf Herbicide, manufactured by Monsanto, is an excellent selective, post-emergent herbicide containing the active ingredient Sulfosulfuron. Certainty Herbicide is easy to use and has a broad label for grass and broadleaf weeds.

This easy to use water dispensable granule offers dependable control over hard-to-manage weeds through the active ingredient sulfosulfuron 75%, combined with its ability to be applied in a variety of seasons to turf without harm. Its flexibility is further seen with its ability to be applied directly or over the top to newly seeded turf or established ornamentals. 

Certainty Turf Herbicide is an ideal herbicide to quickly eliminating weeds in warm-seasoned turf, resulting in the successful removal of unwanted cool-seasoned turfgrass such as fescue, perennial ryegrass, Poa annua, and poa trivialis.

Tools Needed

To use Certainty Turf Herbicide, you will need to mix the product into a sprayer of your choosing such as a backpack or hand-pump sprayer. For the average job, a hand-pump gallon sprayer works best.

How to Use

• Step 1: Determine how much Certainty Turf Herbicide to use by measuring the square footage of the treatment site. To do this, measure the length and width of the treatment site in feet and multiply (length x width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 = acre). A general application of Certainty Turf Herbicide will use 1.25 oz. of product (equivalent to 5 small (0.16 gram) scoops) per 10 to 15 gallons of water per acre. For smaller treatment areas, use 0.75 oz. (equivalent to 1 large (0.8 gram) scoop) per 3 gallons of water per 1,000 sq. ft. The combined total of all treatments must not exceed 2.66 oz. of this product per acre per year.
• Step 2: In a sprayer of your choice, fill the sprayer 3/4ths of the way with water and add the appropriate amount of Certainty Turf Herbicide needed for your application. Fill the sprayer the rest of the way with water, close the lid and shake the sprayer well to ensure it is mixed. Once mixed, you can add and mix in a nonionic surfactant to enhance the product (at a rate of 2 teaspoons or 1/3rd fl. oz. per gallon of water).
• Step 3: Spot treat or spray the target areas, preferably with the sprayer on a fan spray setting for uniform coverage. Monitor the weeds and conduct a follow-up application of Certainty Turf Herbicide as needed after 1 to 2 weeks to achieve complete control.

Where to Use

Certainty Herbicide can be applied to labeled weeds on highly managed turf, native grasses, landscaped areas and ornamental nurseries. This product may be applied to residential and commercial sites, including apartment complexes, athletic fields, cemeteries, golf course fairways, golf course roughs, golf course tees, and other golf course areas, hotel properties, nurseries, office complexes, parks, public areas, retail sites, storage facilities, school grounds, sod and turfgrass seed farms, and other highly managed turfgrass sites.

This product is not for use on golf course putting greens.

When to Use

Certainty Turf Herbicide should be sprayed when weeds are small and actively growing early in the season. Make sure not to disturb areas with mowing at least 2 days before or 2 days after application.

Safety Information

Certainty Turf Herbicide is safe to use around children and kids when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling or applying this product.

Keep people and pets off treated areas until spray solution has dried.

Special Considerations

Heavy rainfall within 2 hours of application may wash this product off of treated foliage and may result in having to do a repeat application to achieve control.