Resolute 4FL Prodiamine Herbicide

Resolute 4FL Prodiamine Herbicide 2.5 Gallon
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Product Overview

Resolute 4FL Herbicide is for selective pre-emergent control of grass and broadleef weeds that are in established turfgrasses (not including golf putting greens), sod nurseries and lawns; field-grown, landscape and container ornamentals; established wildflower and perennial plantings; and christmas tree farms. It stops weeds from continuing to grow and stops newly germinated weeds. A spray colorant may be used with this product to minimize overlaps.

Features and Specs

Active Ingredient Prodiamine 40.7%
Target pests Barnyardgrass, Chickweed, Crabgrass (large & smooth), Foxtails, Goosegrass, Pigweed, Spurge, Witchgrass and more
* See label for complete list
For use in Cool & Warm-Season Turf-grasses (excluding golf course putting greens): Lawns and Sod Nurseries; Container, Field-grown and Landscape Ornamentals; Perennial and Wildflower Plantings; Christmas Tree Farms
Application 0.5 oz. per 1,000 sq. ft.
21 oz. per acre
* See label for complete application instructions
Pet safe Yes, if used as directed on Label
Formulation Professional Product
Group 3 Herbicide
Shipping Weight 10.30 lbs
Manufacturer Syngenta (Mfg. Number: 44907)
EPA Registration 100-1139



  • Do not graze or feed livestock from areas treated with Resolute 4FL.
  • Do not blend Resolute 4FL onto dry fertilizer or any other granular material.
  • Do not use through an irrigation system.
  • Do not apply to putting greens on golf courses.


Mixing Resolute 4FL alone: Must be mixed thoroughly in a spray tank to ensure even application. Fill spray tank 1/4 full with clean water. Start agitation and add Resolute 4FL. Maintain agitation before and during application. A spray colorant may be used to mark areas as they are treated. This will improve by minimizing overlaps.

Tank mixing: can be mixed with other registered herbicides to provide greater control of weeds. Before mixing with pesticides, test by mixing products in a small container first.

Apply Resolute 4FL in a minimum of 20 gallons/A (0.5 gal/1000 sq ft) of carrier (water and/or fluid furtilizer) using a low pressure sprayer with 50 mesh or coarser screens. A broadcast boom or handheld wand designed for herbicide or insecticide will produce best results.

Refer to product chart on label for specific amounts to use and specific order for tank mixing.

For turf applications, refer to chart on label for annual use rates.

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Do I need to water the lawn after applying Resolute 4FL Herbicide?

Yes, Resolute 4FL needs to be watered in after application. 

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18 of 18 people found this answer helpful

Whats the difference between Resolute 4FL and Barricade 4FL? Will you get the same exact results from either?
Resolute 2FL and Barricade 2FL are both made by Syngenta, the only difference may be the inert ingredients.  Either product should produce the same results.

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13 of 13 people found this answer helpful

What is the shelf life of Resolute 4FL?

The shelf life of Resolute 4FL is 3-5 years from the date of purchase as long as it is stored at room temperature.  

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9 of 11 people found this answer helpful

How much Resolute do I mix per gallon for max rate?

Depending on the type of turfgrass you are treating and the desired length of control, you will use 0.23 - 1.1 oz of Resolute 4FL Herbicide per 1,000 square feet, per the product label. When using herbicides, it is most important to use the correct amount of product for the area you are treating and to think of the water as a carrier, rather than aiming for a particular rate per gallon of water. You will need first to calculate how much product you need for the type of grass, size area, and desired length of weed control. Then you can calibrate your hose-end sprayer using just water to determine how many gallons of water you need to treat the entire area. Keep in mind that you will need to activate the product with 0.5 in of rainfall or irrigation within 14 days of application.

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9 of 33 people found this answer helpful

Does Resolute 4FL Herbicide stain concrete?

Resolute 4FL Herbicide is yellow in color and has the potential to stain concrete or other surfaces sprayed. It is recommended that you spray only the areas intended.

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8 of 8 people found this answer helpful

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