Updated on Mar 22, 2024 3:56 PM EDT
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Editor’s Note: Testing for this article took place in late 2023 and these products remain our current top recommendations for 2024 until we revisit this category. Stay tuned for our 2024 updates.
Trees are majestic in the landscape, but not all trees are desirable, such as those that grow beneath power lines or right next to fences. The owner may cut the tree down, but the stump and a massive root system remain locked firmly in the ground. Digging or chopping out a stump is challenging at best, and in some cases, nearly impossible without using heavy equipment. Depending on the species—and if the tree or vine was alive when it was cut down—new aggressive shoots may soon appear around the stump, and the problem starts all over again.
One solution? A tree-stump killer, which is an herbicide specially designed to kill a stump and its roots. Tree-stump killers eliminate the need to chop or dig up stubborn stumps, and they prevent new shoots from forming.
That said, some of the most effective stump killers use chemicals such as triclopyr and picloram; these herbicides pose a threat to wildlife and can even cause collateral damage to nearby shrubs and trees. Before reaching for these products, consider using one of the natural alternatives discussed below.
Ahead, discover tips on how to choose the best stump killer for your yard and find out why the following products are among the best options for getting rid of troublesome stumps.
Before purchasing a tree-stump killer, it’s important to keep a few factors in mind. First, killing a stump requires some level of patience. Even the most effective chemical herbicide for killing stumps will take around 2 months to kill a stump and another 4 to 8 months for the stump to decompose enough to make removing its remains an easy process.
It’s also crucial to remember that stump killers use herbicides to work their magic. As such, they have the potential to impact the environment negatively. Many tree-stump killers use chemicals such as triclopyr, picloram, and glyphosate that can be harmful to wildlife and can even cause damage to surrounding trees and landscaping.
With this in mind, it’s important to consider products that use natural ingredients that won’t leave a footprint on the environment or alternative methods that don’t require adding any substances to the environment at all, including stump grinding or triclosan composting.
Ahead, learn more about the chemical, natural, and physical options that are available for getting rid of a stump.
We extensively researched dozens of products for this lineup. Brand reputation played a role—reputable manufacturers with well-vetted products that were high on customer satisfaction were given top consideration. Still, we didn’t automatically eliminate lesser-known or niche brands as long as the products contained ingredients known for killing stumps.
We kept in mind that stump-killing needs vary. Some users want to get rid of old, seasoned stumps, so we included products that help dead stumps decompose faster. Others are looking to stop volunteer trees from growing where they shouldn’t be growing, and we also considered that need.
To make our lineup, products had to be effective and reasonably simple to use. We allowed for some dilution because many users prefer a concentrated product. We also included products that require drilling holes in a stump before application, as that may be the best way to kill a stump.
While our selections include herbicide-based products, which are among the most effective ways of killing tree stumps, we also select products that will get the job done while being easier on the environment. These alternatives use natural active ingredients, such as Epsom salt, or physical means, such as plastic barriers, that block sunlight to kill tree stumps.
To qualify as one of the top picks, a stump-killing product should effectively destroy the roots of a living tree, brush, or woody vine and prevent regrowth. If the product is designed to remove seasoned stumps, it should hasten the decay of the stump so the owner can easily remove the remaining debris with a shovel.
The following stump-killing/removal chemicals differ in type and function, but each offers a reliable way to eliminate an unwanted stump. If shoppers prefer a nonchemical method, they will want to check out “Do You Need a Stump Killer?” at the end of this guide.
While most people think of Epsom salt as a cure for aching muscles and feet, this versatile product will also kill a tree stump. And, it will do so without harming the environment. In fact, users will be salting the earth after conquering that stump, adding nutrients to the soil that will promote growth of new plantings.
To use, drill inch-wide holes in the tree stump using a power drill and an auger or large drill bit. Cover the stump with salt, sprinkle it with water, then cover with a tarp to prevent the salt from being washed away in the rain. Repeat the process every few weeks until the stump dies and begins to rot.
Get the Solimo stump killer on Amazon.
Triclopyr is the active chemical ingredient in Ferti-lome’s Brush and Stump Killer that’s designed to kill tree roots and stop invasive shoots from growing. It’s also helpful in speeding the decomposition of the stump. Triclopyr, Ferti-lome’s active ingredient, can be toxic to birds, so it should be used sparingly. Limit its use to small stumps up to about 6 inches in diameter and woody brush and vining stumps, such as those associated with poison ivy or wisteria.
The concentrated chemical comes in a 32-ounce bottle and should be diluted at the rate of 8 to 16 tablespoons per gallon of water. Use the highest concentration for hard-to-kill stumps such as poison ivy. Once mixed with water, the solution is painted on the stump with a paint brush.
Get the Ferti-lome brush and stump killer on Amazon or at Ace Hardware.
While using chemicals is one way to kill a tree stump, a cheap and easy method is to deprive it of sunlight using this plastic sheeting from Frost King. To use this sheeting, cut the stump as close to the ground as possible, then cover the stump and its exposed roots with the sheeting. Pile about a foot of organic waste onto the tarp for good measure and wait it out.
The stump will be starved of sunlight, slowly killing it. With its 3-foot width, this plastic sheeting is large enough to cover a good-size stump. It’s also 4 mil thick, which means it will resist punctures and block out sunlight more effectively. What’s more, when the stump is dead, the plastic sheeting can be reused for another one.
Get the Frost King stump killer on Amazon.
For no mix or mess, check out BioAdvanced Brush Killer Plus Stump Remover that comes in a ready-to-use spray bottle. The product is best for small stumps that are commonly associated with woody bushes and vines, including kudzu and poison oak. BioAdvanced is an all-purpose herbicide that also kills noxious and invasive species.
Spray the product, which contains the active ingredient triclopyr, until all exposed surfaces on the stump are thoroughly wet but not dripping. Also saturate any new shoots that may be growing from the stump. BioAdvanced is formulated to penetrate deep into the stump and work its way down to the roots; it will kill and hasten decomposition.
Get the BioAdvanced stump killer on Amazonor at Ace Hardware.
Kill small stumps without harming nearby vegetation with Bonide Stump-Out Stump & Vine Killer, which contains the active ingredient triclopyr. This ready-to-use liquid comes in an 8-ounce bottle and features an included brush-top applicator for painting the product directly onto the surface of the stump. It works well on small to medium tree stumps up to about 8 inches in diameter. Alternatively, users can dilute the product in water and use it in a pump-type sprayer to apply to the foliage of invasive vines.
It’s also suitable for use on the stumps of other woody and vining plants, such as poison oak and wisteria. For the best results, apply this Bonide product to freshly cut stumps and coat as much of the stump surface as possible.
Get the Bonide stump killer at Ace Hardware.
While the stump-killing active ingredients in Tordon may not be easy on the environment, it doesn’t take a lot of this product to work. When used responsibly, Tordon can be a very effective and reasonably safe way of killing an offending tree stump. To use, apply Tordon only in the ring that circles the stump where the bark meets the wood, which is called the cambium. From there, it will soak into the stump’s root system, killing off any living tissue.
Resist the urge to saturate the stump. Doing so will cause the excess chemicals to run off into the soil. Not only will using more Tordon not speed up the stump-killing process, it wastes the products, creates more of an impact on the environment, and could even damage nearby trees if it finds its way to their root system. If the tree is near a steam, lake or other body of water, don’t use this product.
Get the Dow AgroSciences stump killer at Amazon or Tractor Supply Co.
Some stump-killing products may work faster and require fewer applications, such as Tordon RTU and Spectracide Stump Remover; however, they do not meet our sustainability guidelines. The Solimo stump killer (our Best Overall pick above) will get the job done without leaving harmful chemicals in the soil or harming nearby trees, shrubs, and plants. It’s also safe for use around pets and people and doesn’t present a threat to wildlife. Those looking for a faster way to kill a tree stump will want to consider the Ferti-lome stump killer (our Runner-Up pick), which will also take out tough-to-kill weeds, such as poison ivy.
Tree-stump killer isn’t a quick-fix solution for getting rid of stumps; the degradation process can take from a few months to a year. Eventually, the stump will decompose, and the hole that’s left behind can be filled in and smoothed over. Shoppers will want to consider the following when shopping for a tree-stump killer, and if they’re not sold on using a chemical to get rid of a stump, they may want to check our alternative suggestions later in this guide.
The size of the stump is a significant factor in deciding whether to remove it manually or chemically. Stumps that sit a couple of inches above ground level can pose a tripping hazard. If the stump is in a part of the yard that sees frequent foot traffic, it might be better to have it manually removed for safety purposes.
Chemical stump-removal products help kill any size stump that would be challenging to remove manually. Smaller stumps that are less than a couple of inches in diameter may be worth digging out to get rid of them sooner.
The actual time it takes a chemical stump remover to decompose a stump can vary depending on the tree or plant species and whether the stump is green and freshly cut.
In the case of newly cut stumps, a stump-removal herbicide that travels to the roots is necessary to stop resprouting. Depending on the product, results may appear within 6 to 8 weeks. The stump itself, however, may not decompose for another few months.
Another type of stump that’s a good candidate for chemical removal is a dead or “seasoned” stump. Although these stumps are incapable of sending up new shoots, they can be hazardous or stand in the way of new landscaping plans. In this case, the stump-removal product will contain a chemical that hastens the degradation of the old wood, which can take a few months or longer.
After a few months, the owner may be able to pour kerosene on a partially decomposed seasoned stump and burn it. Some chemical stump-remover products are designed to be used in conjunction with stump burning. Before going this route, check with local fire codes to see if burning the stump is permissible in the community.
Chemical tree-stump killers contain potent herbicides and other chemical components that hasten stump decomposition. Most stump-removal products contain one or more of the following active ingredients:
The chemicals in tree-stump killers are often toxic and can irritate skin and eyes or trigger respiratory symptoms if the fumes are inhaled. The manufacturer will usually suggest wearing chemical-resistant gloves and goggles. Consider wearing a respiratory mask and protective clothing for ultimate protection, including long pants and a long-sleeve shirt. Keep children and pets away when treating the stump, and cover the treated stump with a tarp or board during the decomposition process.
Some types of stump remover, especially those containing potassium nitrate, are flammable, so don’t use them near an open flame or smoke during application.
Various chemical tree-stump killers may come with slightly different instructions, but the following application method is standard:
Unwanted trees and shrubs do cause problems; their roots can penetrate drainage lines and they can ruin the look of a well-manicured landscape. While one’s first instinct might be to reach for a tree-stump killer, there are several nonchemical solutions to unwanted stumps that are very effective.
Clearing out underbrush or removing woody shrubs and trees can leave unsightly stumps that must be removed before the area can be used for other purposes. Stump killers are designed to either kill a green stump that might otherwise send up shoots or decay an already dead stump, softening it and making it easy to remove. For those looking to use this type of product for the first time, some questions are to be expected.
To keep new tree sprouts from regrowing, it is often necessary to remove the stump. A stump also poses a tripping hazard and can wreak havoc on the blades of a mower.
Chemicals such as glyphosate, triclopyr, picloram, and potassium nitrate are frequently found in chemical stump removers designed to kill a stump and hasten its decay.
Depending on size, it shouldn’t take more than an hour to prep most stumps and apply a chemical product. However, it could take a few months or longer for the stump to decompose sufficiently for removal.
Application varies by the type of product but typically holes should be drilled in the stump’s surface and then filled with granules or a liquid chemical.
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By Glenda Taylor, Additional research provided by Savannah Sher
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