Chemicals that kill tree roots are essential tools for homeowners and landscapers dealing with unwanted tree growth.Tree roots can cause significant damage to structures, sewer lines, and landscapes. Addressing these issues promptly is crucial to prevent costly repairs and maintain the health of your property.

Whether you’re trying to eliminate invasive roots that threaten your foundation or seeking to clear space for new plantings, the right chemical solution can save time and effort.

Some chemicals are designed to specifically target and kill tree roots without affecting surrounding plants, while others may need to be applied with caution.

In this article, we’ll explore the 10 best chemicals that kill tree roots, highlighting their effectiveness, ease of use, and potential environmental impact.

By the end, you’ll have a clear understanding of which Chemical products  that kill tree roots can help you achieve the best results for your landscaping needs

Related: Best Walk Behind Stump Grinder

Top 10 Best Chemicals That Kill Tree Roots

1. Ferti-lome Brush & Stump Killer – Best Chemical to Kill Invasive Tree Roots

Ferti-lome Brush & Stump Killer is a potent solution designed to eliminate invasive tree roots effectively. Its active ingredient, Triclopyr, penetrates deep into the root system, ensuring complete eradication. This chemical is particularly effective against stubborn species like poison ivy and kudzu.

Application is straightforward: apply the undiluted solution directly to freshly cut stumps or unwanted shoots. The product’s systemic action ensures that the chemical travels throughout the plant, preventing regrowth. It’s essential to use protective gear during application to avoid skin irritation.

Ferti-lome Brush & Stump Killer is suitable for homeowners dealing with invasive root problems in their yards. Its targeted approach minimizes damage to surrounding vegetation, making it a reliable choice for selective root elimination. Regular monitoring post-application ensures complete root death.

Pros:

• Effective on invasives

• Systemic action

• Prevents regrowth

• Easy application

• Minimizes collateral damage

• Suitable for homeowners

• Quick results

Cons:

• Requires protective gear

• Not for large trees

• May need reapplication

2. BioAdvanced Brush Killer Plus – Top-Rated Tree Root Killer for Homeowners

BioAdvanced Brush Killer Plus is a ready-to-use solution ideal for homeowners seeking to eliminate unwanted tree roots. Its active ingredient, Triclopyr, ensures deep penetration into the root system, effectively killing the plant. The product comes with a convenient hose-end sprayer for easy application.

This chemical is effective against a wide range of woody plants, including poison oak and blackberry. Its formulation allows for application without the need for cutting or drilling, making it user-friendly. However, caution is advised to prevent contact with desirable plants.

BioAdvanced Brush Killer Plus is suitable for treating large areas infested with unwanted vegetation. Its ease of use and effectiveness make it a top choice for homeowners tackling root problems. Regular monitoring ensures complete eradication and prevents regrowth.

Pros:

• Ready-to-use

• Easy application

• Effective on woody plants

• No cutting required

• Covers large areas

• User-friendly

• Quick results

Cons:

• May harm desirable plants

• Not for edible crops

• Requires careful application

3. Tordon RTU Herbicide – Best Commercial Tree Root Killer for Plumbers

Tordon RTU Herbicide is a professional-grade solution widely used by plumbers and arborists to eliminate tree roots. Its active ingredients, Picloram and 2,4-D, ensure rapid and effective root killing. The product is ready-to-use, eliminating the need for mixing or dilution.

Application involves applying the herbicide to freshly cut stumps, allowing the chemical to penetrate the root system. Tordon RTU is highly effective against a variety of tree species, making it a versatile choice for professionals. However, due to its potency, caution is advised to prevent damage to surrounding vegetation.

This herbicide is particularly useful in preventing regrowth in areas where tree removal is necessary. Its effectiveness and ease of use make it a preferred choice among professionals dealing with persistent root problems. Proper safety measures should be observed during application.

Pros:

• Professional-grade

• Ready-to-use

• Rapid action

• Versatile

• Prevents regrowth

• Easy application

• Widely used

Cons:

• Potential environmental impact

• Not for residential use

• Requires caution

4. Bonide Stump-Out Granules – Most Effective Chemical for Killing Large Tree Roots

Bonide Stump-Out Granules are designed to accelerate the decomposition of large tree stumps and roots. The product contains sodium metabisulfite, which facilitates the breakdown of lignin in wood, leading to faster decay. This chemical is particularly effective for large stumps that are difficult to remove manually.

Application involves drilling holes into the stump and filling them with the granules, followed by water to activate the chemical. Over time, the stump softens, making it easier to remove or burn. It’s important to follow safety guidelines during application to prevent accidents.

Bonide Stump-Out Granules offer a practical solution for homeowners dealing with large, stubborn stumps. Their effectiveness in accelerating decomposition makes them a valuable tool in landscape management. Regular monitoring ensures the stump is breaking down as expected.

Pros:

• Accelerates decomposition

• Effective on large stumps

• Easy to apply

• Cost-effective

• Reduces manual labor

• Safe when used properly

• Widely available

Cons:

• Requires drilling

• Not immediate

• May need reapplication

5. Roebic K-77 Root Killer – Best Tree Root Removal Chemical for Sewer Pipes

Roebic K-77 Root Killer is a specialized chemical designed to eliminate tree roots invading sewer lines. Its active ingredient, copper sulfate, targets roots without harming the tree itself. This makes it an ideal solution for maintaining the integrity of sewer systems.

Application involves flushing the recommended amount of the chemical down the toilet, allowing it to travel through the pipes and contact the invading roots. The product is effective in clearing blockages and preventing future root intrusion. Regular use can maintain clear sewer lines.

Roebic K-77 is safe for all types of plumbing and septic systems when used as directed. Its targeted action ensures that only the problematic roots are affected, preserving the health of the tree and surrounding vegetation. Proper dosage and application are crucial for optimal results.

Pros:

• Targets sewer roots

• Safe for plumbing

• Prevents regrowth

• Easy application

• Cost-effective

• Widely used

• Reliable results

Cons:

• Contains copper sulfate

• Not for immediate results

• Requires regular use

6. Green Gobbler Foaming Root Killer – Best Root Killer for Trees Near Foundations

Green Gobbler Foaming Root Killer is designed to eliminate tree roots near foundations without harming the tree or surrounding structures. Its foaming action allows the chemical to reach and adhere to roots in hard-to-reach areas. The product contains dichlobenil, a selective herbicide effective against root intrusion.

When applied to drains or cracks near foundations, the foam expands, ensuring even distribution along the root-affected zones. It’s ideal for residential areas where traditional granular or liquid solutions might not reach. While it’s less toxic than many competitors, safety gear is still recommended during use.

Green Gobbler is especially useful for roots growing into foundation cracks, patios, and underground piping systems. It minimizes regrowth with consistent applications and is suitable for both DIY users and professionals. Regular maintenance applications may be required depending on root aggressiveness.

Pros:

• Foaming action

• Reaches difficult areas

• Safe for foundations

• Minimizes regrowth

• User-friendly

• Less toxic formulation

• Suitable for drains

Cons:

• Needs reapplication

• Not for open soil

• Avoid plant contact

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7. Spectracide Stump Remover – Best Chemical for DIY Root Killing Projects

Spectracide Stump Remover is a potassium nitrate-based product ideal for homeowners who prefer DIY methods to kill roots and stumps. It works by accelerating the decomposition of tree stumps and connected root systems, making removal easier. This product is popular for preparing stumps for controlled burning.

To use, drill holes into the stump and fill them with the powder, adding hot water to activate the chemical. Over time, the wood softens and breaks down, reducing the labor involved in manual removal. While it’s not an instant killer, it’s extremely effective over weeks.

Spectracide is a go-to solution for budget-conscious homeowners dealing with small to medium-sized stumps. It’s safe for use in backyard settings when directions are followed properly. Always wear protective gloves and eyewear during the application process.

Pros:

• Easy to use

• DIY-friendly

• Inexpensive

• Softens wood fast

• Speeds up decay

• Ideal for small jobs

• Works with burning

Cons:

• Requires drilling

• Slow results

• Not for sewer roots

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8. Sanco Root Destroyer – Best Eco-Friendly Root Killer for Septic Systems

Sanco Root Destroyer uses copper sulfate crystals to target tree roots growing in septic systems and drainage pipes. It’s specifically formulated for use in sewer lines, offering a safe, gradual way to destroy intrusive roots without harming the entire tree.

The crystals are flushed down toilets, entering the plumbing system where they contact and kill the invading roots. This product is ideal for environmentally conscious homeowners due to its septic-safe formulation. It doesn’t damage pipes or beneficial bacteria in the septic tank.

Sanco Root Destroyer is best used as a maintenance product to prevent serious clogs and backups. Although slower-acting than some foams, its effectiveness and safety make it a solid long-term solution. Use gloves and avoid direct skin contact during handling.

Pros:

• Septic-safe

• Eco-friendly

• Prevents clogs

• Targets roots only

• Easy toilet application

• Affordable

• Long-term solution

Cons:

• Slower results

• Repeated use needed

• Not for outdoor soil

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9. Gordon’s Stump Killer – Best Selective Chemical for Targeted Root Eradication

Gordon’s Stump Killer is a concentrated root killer designed for targeted application on stumps and root sprouts. It contains Triclopyr, known for its systemic action that travels deep into the root system, ensuring complete dieback. This product is best suited for selective root removal.

Application involves brushing the liquid directly onto a fresh stump or cut surface of the unwanted tree or shrub. Its potency ensures that the chemical is absorbed deeply, preventing regrowth from the same root system. It’s ideal for landscaping tasks requiring precision.

Gordon’s Stump Killer is perfect for spot treatments in gardens or yards where you want to eliminate specific trees without damaging nearby plants. Always apply carefully and avoid drift onto desirable vegetation. Use it during dry, windless conditions for best results.

Pros:

• Selective application

• Prevents regrowth

• Easy brush-on use

• Systemic formula

• Ideal for landscaping

• Works on sprouts

• Long-lasting results

Cons:

• Requires cutting

• May harm nearby plants

• Needs dry weather

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10. Dow Crossbow Herbicide – Best Broad-Spectrum Root and Brush Killer

Dow Crossbow Herbicide is a broad-spectrum solution effective against trees, shrubs, and woody plants. It contains both 2,4-D and Triclopyr, making it a powerful chemical root killer for professional-grade brush and tree removal projects. It’s widely used in agricultural and industrial applications.

This herbicide is typically diluted and applied using a sprayer directly on leaves, bark, or cut stumps. Its systemic action kills the entire plant, including the root system. It’s particularly useful in large-scale operations, like clearing pasture, roadsides, or wooded areas.

Dow Crossbow is not recommended for casual backyard use due to its strength and non-selective nature. However, when applied correctly, it provides long-term control over invasive roots and brush. Personal protective equipment is essential during handling and spraying.

Pros:

• Powerful formula

• Kills brush and roots

• Long-term control

• Professional-grade

• Covers large areas

• Systemic penetration

• Effective in pastures

Cons:

• Not for residential use

• Requires dilution

• Harms non-target plants

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Tips for Choosing the Best Chemicals That Kill Tree Roots

Selecting the most effective chemicals that kill tree roots requires careful evaluation of several critical factors. Below are 7 key tips that ensure you choose the right solution for your needs:

1. Identify the Affected Area
   Determine whether the tree roots are in sewer lines, near foundations, or in landscaped areas to choose chemicals that kill tree roots most effectively in that environment.

2. Examine the Chemical Formula
   Study the active components in the chemicals that kill tree roots to ensure they are strong enough to kill tree roots while minimizing harm to soil and nearby vegetation.

3. Choose the Right Application Form
   Decide whether you need liquid, granular, or foam-based chemicals that kill tree roots depending on accessibility and how deeply the tree roots have grown.

4. Review Product Safety
   Opt for chemicals that kill tree roots that are safe for use around pets, children, and ornamental plants to avoid unwanted damage while targeting only the harmful tree roots.

5. Evaluate Long-Term Effectiveness
   Look for reviews and testimonials that confirm the chemicals that kill tree roots work consistently over time and prevent regrowth of invasive tree roots.

6. Understand the Environmental Impact
   Select eco-friendly chemicals that kill tree roots that won’t contaminate groundwater or harm nearby beneficial organisms while still being effective at killing tree roots.

7. Consider Brand Reputation
   Always choose well-known brands that specialize in chemicals that kill tree roots, as they are more likely to provide proven solutions to eliminate stubborn tree roots.

Chemicals That Kill Tree Roots  FAQs

1. What chemicals are commonly used to kill tree roots?

The most common chemicals include glyphosate, triclopyr, copper sulfate, sodium chloride (salt), and dichlobenil. These substances work by either poisoning the root system or drying it out completely.

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2. How do tree root killer chemicals work?

Tree root killers are absorbed through freshly cut stumps or exposed roots, disrupting the plant’s ability to transport nutrients. Some like glyphosate inhibit enzyme pathways, while others like copper sulfate damage the cell structure.

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3. Are chemical root killers safe for sewer lines?

Yes, certain chemical root killers like foaming dichlobenil or copper sulfate are formulated specifically for sewer systems. They kill roots without harming pipes but must be used as directed to avoid environmental damage.

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4. How long do chemical root killers take to work?

Depending on the chemical and application method, visible results can appear in a few days to several weeks. Complete root death and decay may take a few months.

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5. Can chemical root killers harm other plants or trees nearby?

Yes. If not applied carefully, chemicals like glyphosate or triclopyr can spread through soil or water and damage surrounding vegetation. Always follow label instructions to minimize unintended effects.

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6. Do I need to reapply chemical root killers?

In most cases, reapplication is necessary, especially for stubborn or large root systems. Re-treating every 3 to 6 months may be required until the root system is completely dead.

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7. What precautions should I take when using chemical root killers?

Wear protective gear (gloves, mask, eye protection), avoid runoff into water sources, and do not apply near edible plants. Read and follow the manufacturer’s safety guidelines for proper usage and storage

Conclusion

Choosing the best chemical to kill tree roots depends on your specific needs—whether you’re tackling sewer line invasions, stumps in the yard, or aggressive roots near foundations.

From professional-grade solutions like Tordon RTU and Dow Crossbow to homeowner-friendly options like Spectracide and Green Gobbler, this list provides safe, effective, and proven methods to eliminate root problems.

Always prioritize safety, read product labels, and follow instructions precisely. Regular application and maintenance can prevent regrowth and protect your property. Whether you’re a professional or DIY enthusiast, there’s a solution on this list tailored to your situation.

Ready to stop roots from taking over your property? Pick the product that fits your needs, act now, and enjoy a root-free, damage-free environment.

Would you like help choosing the best option based on your specific root issue?