Best Herbicide for Blackberry Control: Top Pasture and Fence-Line Solutions
Blackberry invasion in pastures, fence lines, and rangeland can reduce forage yield and complicate management. Choosing an effective herbicide depends on whether you need to kill woody brush, manage broadleaf weeds, or target sedge and grasses around brambles. Below are five market-leading products known for blackberry control, offering systemic action, selective plant injury, and compatibility with common tank mixes.
| Product | Brand | Best For | Key Benefit |
|---|---|---|---|
| Remedy Ultra Specialty Herbicide | Remedy Ultra | Brush control along pastures and fence lines | Low-odor, works on roots and top growth; flexible use and long-lasting |
| PastureGard HL Herbicide | PastureGard HL | Selective woody plant and blackberry control | Translocates to kill hard-to-control brush like blackberry |
| PastureGard HL 2.5 Gallons | PastureGard HL | Wooded brush including blackberry in larger deployments | Higher-volume option with similar selectivity |
| Nufarm Weedmaster | Nufarm | Broad-spectrum weed control, including blackberry | Active 2,4-D and dicamba formulation; versatile site use |
| Quali-Pro EXPEL | Quali-Pro | Tough-to-kill weeds and sedges | Quick acting; controls over 50 weeds; sedge-focused |
Remedy Ultra: Brush And Blackberry Control

Remedy Ultra is a top-rated pasture herbicide designed for brush and woody plant control, including blackberry. The formulation is noted for a low odor and systemic action that reaches both roots and the upper plant tissue, promoting effective kill across the entire plant. It is described as flexible and long-lasting, making it suitable for pasture restoration, encroaching brush along fence lines, and general brush management. The product is marketed for use alone or in tank mixes with GrazonNext or ForeFront HL, expanding its application in integrated weed management programs. For best results, follow label directions for timing and application rate, and consider local state registrations before use.
PastureGard HL: Woody Plant And Blackberry Control

PastureGard HL is formulated for selective control of woody plants and brush, providing thorough translocation that targets stubborn brush such as blackberry, rose, and privet. It offers robust control of other tough woody species, including wax myrtle, sweet gum, persimmon, and osage orange (bois d’arc). This product is commonly used in pastures and along fence lines where woody invaders threaten forage and access. The label highlights that pastures, fence rows, and rangeland can benefit from its systemic action, with attention to site-specific registrations. Use according to label directions to maximize effectiveness and minimize non-target injury.
PastureGard HL 2.5 Gallons: Brush and Blackberry Control

This larger-volume PastureGard HL option provides the same selective woody plant and brush control, including blackberry, with the benefit of a higher application volume suitable for larger deployments. It is designed for use in pastures and other non-crop areas where brush pressure is significant. The label notes that PastureGard HL does not provide soil residual control of weeds or new brush arising after application, so timing and follow-up treatments may be necessary for ongoing management. Always verify state registrations and adhere to label instructions for best outcomes.
Nufarm Weedmaster: Broad-Spectrum Control

Nufarm Weedmaster combines 2,4-D and dicamba to deliver broad-spectrum weed control, including blackberry, across diverse sites such as pastures, rangeland, rights-of-way, and non-crop areas. The product’s versatility is highlighted by its broad recommended use on many crops and non-crop areas, including buffer zones around fields and turf. It is suitable for pre-emergence and post-emergence scenarios in various grasses and forage settings. The label emphasizes the ability to suppress tough broadleaf weeds and brush in a concentrated form, supporting a comprehensive weed management program where blackberry is present.
Quali-Pro EXPEL: Tough Weed Control

Quali-Pro EXPEL is positioned for tough-to-kill weeds, with a focus on sedges and other persistent broadleaf species. It is designed for use in commercial and residential cool and warm-season grasses, athletic fields, and sod farms, as well as golf courses. While the product’s primary strength is sedge and weed suppression, it also offers broad weed control in mixed landscapes where blackberry is part of the weed complex. Always consult the label for site restrictions, application timing, and compatibility with neighboring crops or turf stands.
Buying Guide
Key purchase considerations help sort these options by target weed type, site, and management approach. First, identify whether blackberry control requires brush-specific action or broadleaf weed suppression. Brush-focused products (Remedy Ultra, PastureGard HL variants) deliver systemic kill of woody plants, often with translocation to the root system. If your goal includes broadleaf weeds along with blackberry in pastures or rights-of-way, a broad-spectrum formula (Nufarm Weedmaster) may be advantageous, but ensure it supports the specific grasses or forage you manage. Sedge and tough weed control (Quali-Pro EXPEL) is useful in turf margins where sedge equity matters, but may not directly target blackberry as a woody plant.
- Site and registration: Check the product’s labeled use sites (pastures, rangeland, fence rows, rights-of-way) and confirm state registrations before purchase, especially for PastureGard HL 1 gal. and other region-restricted products.
- Mode of action and selectivity: Brush-focused products (triclopyr-based) are typically selective for woody plants and may spare grasses when used as directed. Broad-spectrum products may affect desirable forage if misapplied.
- Application timing: Some products perform best on actively growing brush in the growing season; others require specific weather windows to maximize uptake and minimize volatilization or drift.
- Tank mix options: Remedy Ultra can be tank-mixed with GrazonNext or ForeFront HL to expand control spectrum, offering flexibility in integrated weed management programs.
- Water quality and environmental considerations: Follow label directions to prevent non-target exposure to streams or wildlife habitat, and avoid application near water sources as directed.
When choosing among these options, align product selection with your management goals, field size, and the intensity of blackberry pressure. For ongoing control, plan a rotation of products with different modes of action to reduce the risk of weed resistance. Always read and follow the label to ensure legal compliance and safe, effective use on your property.