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PastureGard HL Herbicide
PastureGard HL Herbicide is a effective post-emergent herbicide that controls woody plants and broadleaf weeds on rangelands and pastures. It contains Triclopyr and Fluroxypyr and can be used selectively to control woody plants and brush.
09/08/25
PastureGard HL Herbicide, manufactured by DOW/CORTEVA, is an effective herbicide for managing brush, woody plants, and invasive trees on rangeland and pastures.
This emulsifiable concentrate product is mainly used by land managers and those in agricultural settings. While the product works independently, PastureGard HL Herbicide mixes well with other herbicides. If weeds, trees, and brush are causing problems for livestock, PastureGard HL can resolve it.
PastureGard HL Herbicide is a flexible post-emergent herbicide that stops hard-to-control broadleaf weeds and brushes in various terrains. Simplifies rangelands, pastures, fence rows, and other non-crops so applicators such as ranchers can focus on other tasks. Additionally, this product will become rainfast after a couple of hours, ensuring further successful weed control.
Tools Needed
You will need a handheld pump sprayer or backpack sprayer for smaller applications to use this product. For larger applications, use a spray rig.
How to Use
- Step 1: Determine how much PastureGard HL Herbicide to use by measuring the square footage of the treatment area. To do this, you will need to measure the treatment areas' length and width in feet, then multiply them together (length X width = square footage). For acreage, divide the square footage by one acre (square footage / 43,560 sq. ft. = acres). Typical spot applications of PastureGard HL Herbicide are done at a rate of 0.18 to 1.47 fl. oz. in a gallon of water per 1,000 sq. ft. So, for example, if you are treating a 3,000 sq. ft. area, you would need to mix between 0.54 to 4.41 fl. oz. of product in 3 gallons of water. Refer to the product label for specific application rates and restrictions.
- Step 2: Fill the spray tank with half the required water. Then, add the appropriate amount of product. Add the appropriate amount of selected surfactant, as the label suggests, and agitate the sprayer to ensure the solutions are mixed well.
- Step 3: Spray the PastureGard HL application to targeted areas where weeds grow, preferably on a fan spray setting for uniform coverage. If trying to control an invasive tree, you will need an oil-based carrier and perform a cut-stump treatment. Apply enough spray to wet the trunk's lower 12 to 15 inches, including the root collar.
Where to Use
PastureGard HL Herbicide can be used on rangeland, permanent grass pastures, and conservation reserve program (CRP) acres (including fence rows and non-irrigation ditch banks within these areas). It can also be applied anywhere undesirable, such as woody plants and annual and perennial broadleaf weeds, which must be controlled.
When to Use
For best results, apply when plants are actively growing, typically from late spring to early fall. Apply at least 10 days before leaf color change in late summer. Application in late summer or periods of dry weather, when plants are not actively growing, may result in unsatisfactory control.
For best results, apply when plants are actively growing, not drought-stressed, and have minimal insect damage or defoliation.
If you decide to replant clover, you will need to wait at least 1 month after application.
Safety Information
PastureGard HL Herbicide is safe to use around children, pets, and livestock when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.
There are no grazing restrictions for livestock or dairy animals in treated areas. Withdraw livestock from grazing treated grass or consumption of treated hay at least 3 days before slaughter.
Do not allow people or pets to enter the treated area until sprays have dried.
Special Considerations
Low-volume basal and cut-stump applications of PastureGard HL require an oil-based carrier. Be sure pumps and hoses are resistant to oil-based carriers. Wands and spray tips should also be chemical-resistant. Adjustable tips give you more control when making individual plant treatments, and there should be a cut-off at the tip to avoid wasting product (such as a strainer and check ball valve or low-volume wand).
The residual of PastureGard is 3 years, depending on the soil and weather conditions.
Availability | Online |
Restricted Use | No |
Shipping Restrictions | 2.5 Gallon: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA 1 Gallon: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
Brand | CORTEVA |
Keith's Pro Tips | "When difficult-to-control species are prevalent, or a weed or brush is particularly stubborn, use the higher rate of PastureGard HL in the rate range found on the label." |
Product Drawbacks | PastureGard HL requires regular agitation to ensure the product is mixed well. |
Target Pests | Twisted Acacia, Aspen, Birch, Blackberry, Dogwood, Elbowbush, Elderberry, Elm, Granjeno, Wild Grape, Greenbriar, Guajillo, Guava, Hackberry, Hawthorn, Huisache, Poison Ivy, Kudzu, Lantana, Black Locust, Honey Locust, Maple, Mesquite, Milkweed Vine, Poison Oak, Oak species, Osage-orange, Palmetto, Peppervine, Eastern Persimmon, Texas Persimmon, Poplar, Pricklyash, Privet, Primrose-willow, Cherokee Rose, Multiflora Rose, Wild Rose, Saltbush, Saltcedar, Sassafras, Sumac, Chinese Tallowtree, Trumpetcreeper, Virginia creeper, Waxmyrtle, Willow, Yaupon, and Yucca. |
Application Equipment | Backpack Sprayer, Pump Sprayer, Spray Rig |
Application Methods | Spot Treatment |
Active Ingredient | Triclopyr 45.07%, and Fluroxypyr 15.56% |
Product Type | Herbicide |
Formulation | Emulsifiable Concentrate (EC) |
Application Rate | Spot treatments, apply 0.18 oz. of PastureGard HL Herbicide per gallon of water per 1,000 sq. ft. Broadcast treatments, use 1 pint of PastureGard HL Herbicide per 100 gallons of water per acre. |
Shelf Life | PastureGard HL will last for up to 3 years when stored in a dry, clean environment above 28 degrees Fahrenheit and away from water, food, and feed. |
Yield | 1 Gallon of PastureGard HL can treat up to 4 acres of land when using an average application rate of 2 pints per acre. |
Use Sites | Outdoors |
Time to Kill | Depending on the species and how actively the treated plants are growing, it will take a couple of days for symptoms to appear and several weeks for plants to completely die. |
Comparable Products | Remedy Herbicide |
Use Caution With | Bentgrass, Kikuyugrass, St Augustine, Zoysiagrass |
Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl |
EPA Registration # | 62719-637 |
Restricted Use | No |
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Shipping Restrictions | AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA |
Availability | Online |
Signal Word | CAUTION |
Keith's Pro Tip | "When difficult-to-control species are prevalent, or a weed or brush is particularly stubborn, use the higher rate of PastureGard HL in the rate range found on the label." |
Target Pests Multi | Greenbriar, Kudzu, Lantana, Oak, Trumpet Creeper, Virginia Creeper, Willow, Aspen, Birch, Black Locust, Blackberry, Cherokee Rose, Chinese Tallowtree, Dogwood, Eastern Persimmon, Elbowbush, Elderberry, Elm, Granjeno, Guajillo, Guava, Hackberry, Hawthorn, Honey Locust, Huisache, Maples, Mesquite, Milkweed Vine, Osage Orange, Palmetto, Pepper Vine, Poplar, Pricklyash, Primrose-willow, Privet, Salt Cedar, Saltbush, Sassafras, Sumac, Texas Persimmon, Twisted Acacia, Wax Myrtle, Wild Grape, Wild Rose, Yaupon, Yucca |
Time to Kill | Depending on the species and how actively the treated plants are growing, it will take a couple of days for symptoms to appear and several weeks for plants to completely die. |
Chemical Type | Herbicide |
Formulation | Emulsifiable Concentrate (EC) |
Application Methods | Spot Treatment |
Product Drawbacks | PastureGard HL requires regular agitation to ensure the product is mixed well. |
Active Ingredient | Triclopyr 45.07%, and Fluroxypyr 15.56% |
Application Equipment | Backpack Sprayer, Pump Sprayer, Spray Rig |
Mix Rate | Spot treatments, apply 0.18 oz. of PastureGard HL Herbicide per gallon of water per 1,000 sq. ft. Broadcast treatments, use 1 pint of PastureGard HL Herbicide per 100 gallons of water per acre. |
Use Sites | Outdoors |
Yield | 1 Gallon of PastureGard HL can treat up to 4 acres of land when using an average application rate of 2 pints per acre. |
EPA Registration No. | 62719-637 |
Shelf Life | PastureGard HL will last for up to 3 years when stored in a dry, clean environment above 28 degrees Fahrenheit and away from water, food, and feed. |
Comparable Products | Remedy Herbicide |
Children or pets? | No |
Property Characteristics | None |
*Price does not include freight. We guarantee our rate plus shipping will be less than anyone else's price.