To manage their growth and prevent them from spreading uncontrollably, applying the best herbicide for blackberries is crucial.

Blackberries can be a delight to grow, but when they begin to take over your garden or farmland, they can become a troublesome weed.

With different types of blackberry varieties, it’s important to choose the correct herbicide, considering its effectiveness, safety, and application method.

This article reviews the top herbicides that can help you maintain a blackberry-free environment. Whether you’re dealing with wild blackberries or Himalayan blackberries, we’ve got a selection of products that cater to various needs.

Related: Best Fertilizer For Blueberries

17 Best Herbicide For Blackberries

1. Roundup Pro Concentrate – Best Herbicide for Blackberries in Florida

Roundup Pro Concentrate is a powerful systemic herbicide for blackberries, ideal for large blackberry infestations, especially in areas like Florida. This non-selective herbicide works by being absorbed through the leaves and stems, killing the plant from the roots up. The formula contains glyphosate, a widely used active ingredient in many blackberry herbicides, which has proven effective in eliminating both wild blackberries and other tough weeds.

For Florida’s climate, Roundup Pro Concentrate is highly recommended for its efficiency and long-lasting results. It is effective at controlling even deeply rooted blackberry bushes that are resistant to many other herbicides. The application of this herbicide should be done when blackberries are actively growing, usually in spring or early summer, to ensure maximum absorption and effectiveness.

Pros:

• Long-lasting effects
• Effective on wild blackberries
• Easy to apply
• Rainfast within 30 minutes
• Cost-effective for large areas
• Works on tough weeds
• Non-selective

Cons:

• Toxic to desirable plants
• Requires careful application
• Harmful to aquatic life

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2. Garlon 4 – Best Herbicide for Blackberry Bushes

Garlon 4 is a selective herbicide for blackberries, best suited for use on established blackberry bushes. Unlike non-selective herbicides, Garlon 4 targets specific plant species like blackberries, without affecting surrounding vegetation. It is a highly effective systemic herbicide that is absorbed by the leaves and translocates throughout the plant to kill it down to the roots.

When dealing with Himalayan blackberries or other particularly invasive blackberry varieties, Garlon 4 provides a powerful solution. It’s effective during both the growing season and dormant periods, making it a versatile herbicide for year-round blackberry control. The formula contains triclopyr, which is well-regarded for its ability to control hardwood species like blackberries.

Pros:

• Selective to blackberries
• Effective in all seasons
• Targets root systems
• Minimal impact on surrounding plants
• Easy to apply
• Long-lasting results
• Low re-treatment frequency

Cons:

• Restricted use near water
• Slow to show effects
• Requires dilution

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3. Crossbow – Best Herbicide to Kill Blackberry Bushes

Crossbow is a non-selective herbicide for blackberries that combines two powerful active ingredients, 2,4-D and triclopyr, making it an ideal choice for controlling blackberry bushes. It works by attacking the plant’s vascular system, effectively killing the plant and preventing regrowth. Crossbow is often used in larger-scale commercial applications and forestry management, particularly where blackberry bushes have become deeply entrenched.

This herbicide is most effective in late summer or early fall when blackberry growth slows down, allowing the herbicide to be absorbed efficiently into the root system. It is highly effective at controlling stubborn blackberry species like the Himalayan blackberry, which can be difficult to eradicate with other products.

Pros:

• Controls large blackberry infestations
• Combines two active ingredients
• Effective year-round
• Ideal for difficult-to-control areas
• Penetrates dense vegetation
• Long-term effectiveness
• Quick to act

Cons:

• Not safe for all crops
• Potential environmental risks
• Toxic to aquatic environments

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4. Triclopyr – Best Non-Selective Herbicide for Blackberries

Triclopyr is another potent non-selective herbicide often used for blackberry control. Unlike glyphosate-based herbicides, Triclopyr works by disrupting plant hormones, leading to the destruction of blackberry bushes and other invasive species. It is particularly effective on woody plants, making it an excellent choice for eradicating wild blackberries or the more aggressive Himalayan blackberry.

For best results, apply Triclopyr when blackberries are in their active growth phase. This allows the herbicide to penetrate through the leaves and stem to reach the root system. It is also available in both liquid and granular forms, providing flexibility depending on the area you need to treat.

Pros:

• Targets woody plants
• Effective on tough blackberries
• Fast-acting
• Works on roots and shoots
• Versatile application methods
• Low impact on desirable plants
• Minimal environmental toxicity

Cons:

• Requires careful handling
• Can harm non-target species
• Slow to show results

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5. Remedy Ultra – Best Postemergence Herbicide for Blackberries

Remedy Ultra is a postemergence herbicide for blackberries, specifically formulated to control blackberry bushes after they’ve emerged from the soil. This herbicide is highly effective for managing Himalayan blackberries and other blackberry species that have already become established. It works by targeting the plant’s growth hormones, causing it to stop growing and eventually die off.

For optimal performance, Remedy Ultra should be applied during the growing season when blackberries are actively producing new leaves and stems. The herbicide provides excellent control, even on mature and heavily established blackberry bushes. It’s also effective at preventing blackberry regrowth after treatment.

Pros:

• Best for established blackberries
• Works on mature plants
• Highly effective against stubborn bushes
• No root regrowth
• Easy to apply
• Effective on a variety of blackberry species
• Ideal for commercial use

Cons:

• Requires multiple applications
• May harm surrounding vegetation
• Needs special handling

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6. Clemox – Best Foliar Applied Herbicide for Blackberries

Clemox is a foliar applied herbicide for blackberries that works by targeting the leaves of the blackberry plants. It is absorbed through the leaves and then travels to the roots to kill the plant. Clemox is especially effective for managing wild blackberries and Himalayan blackberries, which tend to grow in dense clusters, making it difficult to target individual plants.

For maximum effectiveness, Clemox should be applied in the late spring to early summer when blackberry plants are actively growing. This ensures the herbicide is absorbed efficiently and translocated to the root system. This herbicide is favored by homeowners and small-scale farmers for its targeted application method.

Pros:

• Effective foliar treatment
• Easy to apply with minimal waste
• Works on a variety of blackberry types
• Quick absorption
• Minimal environmental impact
• Low toxicity
• Cost-effective

Cons:

• Limited to foliar application
• Best for smaller infestations
• May require reapplication

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7. Krenite S – Best Preemergence Herbicide for Blackberries

Krenite S is a preemergence herbicide for blackberries, designed to prevent blackberry seeds from germinating and establishing. It is effective in controlling wild blackberries before they sprout and begin growing. By inhibiting seedling growth, Krenite S helps reduce blackberry infestations before they become a problem, making it an essential tool for long-term blackberry management.

Krenite S is best applied during the fall or early spring, before blackberry plants have emerged. It is particularly useful for controlling blackberry bushes that have spread by seeds, offering a proactive approach to blackberry control.

Pros:

• Prevents blackberry germination
• Ideal for early-season application
• Long-term effectiveness
• Easy to apply
• Low risk to other plants
• Excellent for seedling control
• Reduces future infestations

Cons:

• Not effective on mature plants
• Requires careful timing
• Limited to seedling control

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8. Clarity Herbicide – Best Contact Herbicide for Blackberries

Clarity is a contact herbicide for blackberries that works by killing blackberry plants on contact. This herbicide is designed for quick action, making it ideal for spot treatment of blackberry bushes that need immediate attention. It is particularly effective in smaller areas where you want to target specific blackberry plants without affecting the surrounding environment.

The fast-acting nature of Clarity makes it an excellent option for controlling smaller infestations of Himalayan blackberries or wild blackberries. Apply Clarity directly onto the leaves and stems of the blackberry plant for the most effective results.

Pros:

• Quick acting
• Spot treatment option
• Effective on contact
• Ideal for small infestations
• Minimal soil absorption
• Easy to use
• Cost-efficient

Cons:

• Only effective on contact
• Requires multiple applications
• May not penetrate deep roots

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9. Arsenal AC – Best Systemic Herbicide for Blackberries

Arsenal AC is a systemic herbicide for blackberries, absorbed through the leaves and translocated throughout the entire plant. It works effectively on both wild blackberries and Himalayan blackberries by interfering with the plant’s metabolic processes, leading to its death. Arsenal AC is often used in forestry and land management to clear invasive species like blackberry bushes.

This herbicide is highly effective for long-term blackberry control, especially in areas where blackberries have become established. It requires only one application per season, making it a convenient option for those looking for minimal maintenance.

Pros:

• Systemic action
• Effective on deep-rooted blackberries
• Single application
• Low environmental impact
• Ideal for large areas
• Long-lasting
• Proven effectiveness

Cons:

• Requires special handling
• May affect other plants
• Toxic to aquatic environments

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10. Pathway Herbicide – Best Selective Herbicide for Blackberries

Pathway Herbicide is a selective herbicide for blackberries, offering a unique approach to blackberry control. It specifically targets blackberry plants without affecting surrounding vegetation, making it a top choice for areas where you want to preserve desirable plants. Pathway works by inhibiting root and shoot growth, ultimately killing the blackberry plant.

Ideal for controlling Himalayan blackberries, Pathway is effective in managing blackberry infestations while minimizing harm to surrounding crops. It is also safe for use around most trees and shrubs, making it a versatile option for residential and commercial use.

Pros:

• Selective to blackberries
• Safe for surrounding plants
• Ideal for residential use
• Targets both roots and shoots
• Easy to apply
• Long-lasting
• Minimal environmental impact

Cons:

• Limited to blackberry species
• Requires accurate application
• Slow results

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11. Best Contact Herbicide for Blackberries – Bonide BurnOut Weed and Grass Killer

Bonide BurnOut Weed and Grass Killer is an excellent contact herbicide for blackberry bushes. It works by directly destroying the plant tissue it comes into contact with, killing the blackberry bush on the spot. While it is a contact herbicide and doesn’t affect the root system, it is perfect for use on small patches of blackberry growth or new shoots that need quick eradication.

This herbicide is made from natural ingredients, including clove oil and vinegar, making it an ideal choice for those seeking an environmentally friendly option. It is particularly useful for treating small blackberry infestations or areas where other herbicides may be too potent. Bonide BurnOut is effective against blackberries in both sunny and shaded areas, ensuring versatility in its application.

However, due to its contact-only nature, Bonide BurnOut requires multiple applications for more extensive blackberry infestations, especially if the root system is not eliminated. It’s also best suited for non-crop areas, as it can damage other plants if not applied carefully.

Pros:

• Fast-acting
• Environmentally friendly
• Contact kill
• Safe for small areas
• Works on young blackberries
• Non-toxic to animals
• Easy to use

Cons:

• Limited to small infestations
• Requires reapplication
• Can harm non-target plants

12. Best Preemergence Herbicide for Blackberries – Prowl H2O Herbicide

Prowl H2O Herbicide is an excellent choice for preemergence control of blackberry bushes. This herbicide is designed to prevent the germination of blackberry seeds and seedlings, making it a highly effective tool for early intervention. It works by inhibiting root formation in newly germinated seeds, ensuring that blackberries do not become established in treated areas.

Prowl H2O is widely used in agricultural and horticultural applications, offering a strong preventative measure against the spread of blackberry species. It can be applied to a variety of terrains, including agricultural fields, pastures, and non-crop areas where blackberry growth is unwanted. It is particularly effective when used in conjunction with other management practices, such as physical removal of mature plants.

To achieve the best results, Prowl H2O should be applied before blackberry seeds have a chance to germinate. This requires careful timing based on local climate conditions. Prowl H2O provides effective control over the long term, reducing the need for ongoing applications.

Pros:

• Preemergence control
• Prevents seed germination
• Effective long-term
• Ideal for large areas
• Easy to apply
• Safe for crops
• Reduces maintenance

Cons:

• Timing is critical
• Limited application windows
• May need additional treatments

13. Best Systemic Herbicide for Blackberries – Crossbow Herbicide

Crossbow Herbicide is one of the most powerful systemic herbicides available for controlling blackberry bushes. It works by being absorbed through the leaves and stems, traveling to the roots to kill the entire plant. Crossbow is highly effective for managing established blackberry bushes and other invasive species, making it an excellent choice for tough blackberry infestations.

This herbicide is a combination of two active ingredients: triclopyr and fluroxypyr, which provide both systemic and residual control of blackberry species. It is perfect for use in forests, pastures, and rangeland, where blackberry bushes are particularly persistent. Crossbow’s formula works through the plant’s vascular system, ensuring deep penetration and maximum effectiveness.

While effective, Crossbow should be applied with caution, as it can be harmful to other plants if not used properly. For best results, apply during the growing season when blackberries are actively producing new growth.

Pros:

• Systemic action
• Effective on tough blackberries
• Deep root penetration
• Long-lasting effects
• Ideal for large areas
• Works on invasive species
• Safe in forests

Cons:

• Harmful to non-target plants
• Requires careful handling
• Expensive

14. Best Postemergence Herbicide for Blackberries – Bayer Advanced Brush Killer

Bayer Advanced Brush Killer is a highly effective postemergence herbicide designed for control of blackberry bushes and other hard-to-kill plants. This herbicide is particularly effective when applied after the blackberries have already emerged and are actively growing. It works by targeting the plant’s root system, ensuring long-lasting results with a single application.

The formula in Bayer Advanced Brush Killer contains triclopyr, a potent active ingredient known for its ability to penetrate tough blackberry stems and roots. This systemic action makes it highly effective against blackberry species, including the hardier Himalayan blackberry. It is especially useful in controlling large, established blackberry plants that may be resistant to other herbicides.

One key advantage of this postemergence herbicide is its ability to provide residual control, meaning that the blackberry bushes are less likely to regrow after treatment. However, as with all herbicides, it is recommended to follow the manufacturer’s instructions to avoid unnecessary risks to surrounding plants and wildlife.

Pros:

• Targets roots
• Provides long-lasting control
• Effective on established blackberries
• Systemic action
• Ideal for tough plants
• Works on woody species
• Easy to use

Cons:

• May harm surrounding plants
• Requires careful application
• Not suitable for all areas

15. Best Non-Selective Herbicide for Blackberries – Spectracide Weed & Grass Killer

Spectracide Weed & Grass Killer is a powerful non-selective herbicide that delivers effective control of blackberry bushes. It is highly recommended for individuals dealing with blackberry invasions in non-crop areas, such as sidewalks, driveways, and fence lines. Spectracide’s formulation works quickly, killing plants within hours of application, and is ideal for people who need immediate results in blackberry control.

This herbicide is particularly effective because of its non-selective nature, meaning it kills all vegetation it comes into contact with. It is perfect for eradicating blackberry bushes, as it does not leave roots behind for regrowth, ensuring complete elimination. Additionally, Spectracide provides a faster kill time compared to other herbicides, making it a great option for quick interventions.

The application of Spectracide Weed & Grass Killer is straightforward, and it is available in both ready-to-use sprays and concentrated forms, providing flexibility depending on your needs. Just be sure to protect any surrounding plants from overspray, as this herbicide will also kill grasses and other plants.

Pros:

• Fast-acting
• Non-selective
• Multiple forms available
• Complete kill
• Ideal for tough weeds
• Easy to apply
• Affordable

Cons:

• Toxic to all plants
• Needs careful application
• Reapplication needed

16. Best Herbicide for Himalayan Blackberry – Roundup Custom Herbicide

Roundup Custom Herbicide is one of the top herbicides for controlling Himalayan blackberry, known for its powerful systemic action. As a broad-spectrum non-selective herbicide, Roundup Custom is effective in killing not only Himalayan blackberry but also other tough, woody weeds. The herbicide’s formula works by being absorbed through the leaves, traveling down to the roots and preventing regrowth, which is vital for controlling invasive blackberry species.

This herbicide is ideal for both residential and commercial use, offering a simple application process for large areas. Roundup Custom’s active ingredient, glyphosate, is well-known for its ability to target and eliminate unwanted plants by interfering with their growth processes. This makes it particularly effective for tackling blackberry bushes, especially when applied during the growing season.

It is essential to apply Roundup Custom Herbicide with caution, ensuring it does not contact desirable plants or water sources, as glyphosate can be harmful to them. For the best results, use it on a dry day with no wind, to minimize drift and increase absorption by the blackberry leaves. Roundup Custom is also recommended for use in areas where blackberry bushes are well-established, providing effective long-term control.

Pros:

• Effective on tough blackberries
• Simple application
• Fast-acting
• Systemic action
• Works on large areas
• Widely available
• Affordable

Cons:

• Harmful to desirable plants
• Requires careful handling
• Needs reapplication

17. Best Herbicide for Blackberries in NZ – Tordon 242 Herbicide

Tordon 242 Herbicide is a highly effective solution for managing blackberry bushes in New Zealand. Specially formulated for woody weeds like blackberry, this herbicide is known for its ability to control hard-to-kill plants. Tordon 242 combines two powerful active ingredients, picloram and triclopyr, to provide systemic action that targets the roots and prevents regrowth.

When applied to blackberry bushes, Tordon 242 moves through the plant’s vascular system, ensuring the entire plant, from the leaves to the roots, is affected. It is particularly effective for larger, established blackberry patches in rural or bushland areas. Its long-lasting action reduces the need for frequent reapplications, offering a solution for landowners dealing with persistent blackberry invasions.

In New Zealand, Tordon 242 is often recommended for use in forestry, pastureland, and along roadsides, making it ideal for large-scale blackberry control. However, because it is a potent herbicide, care must be taken to avoid contact with non-target vegetation to prevent damage. It is best applied during the growing season for maximum absorption and effectiveness.

Pros:

• Effective on woody weeds
• Systemic action
• Long-lasting effects
• Ideal for large areas
• Works on established blackberries
• Reduces regrowth
• Widely recommended in NZ

Cons:

• Harmful to non-target plants
• Requires careful handling
• Not suitable for all terrains

Conclusion

When it comes to blackberry control, selecting the right herbicide can make all the difference in ensuring that your property remains blackberry-free. Among the 16 best herbicides for blackberries, Roundup Pro Concentrate stands out as the top choice due to its proven effectiveness in eliminating blackberry plants and other weeds, even in difficult conditions.

For those looking for a more selective herbicides for blackberries  approach, Garlon 4 and Pathway Herbicide are excellent options. Both products offer targeted treatments for specific blackberry species without harming surrounding plants, making them ideal for residential and commercial use.

Ultimately, your choice will depend on factors like the severity of your blackberry problem, the type of blackberry species you’re dealing with, and the desired level of selectivity. Regardless of which herbicide you choose, following the manufacturer’s instructions for proper application will help you achieve the best result