Best Brush Killer For Vines, Trees And Heavy Brush

Last Updated on June 25, 2021 by Grow with Bovees

There’s nothing nicer than days working in your yard to get it looking like a picture in a magazine. It gives you a great sense of achievement. However, out of nowhere, you then spot brush and weeds growing and ruining your beautiful masterpiece.

What can you do to get rid of them?

The first thing you need to do is find the best brush killer to be able to kill off the weeds and get your garden back to its best. There are lots of brush killers out there to deal with overgrown weeds and brush, and you need to make sure that the one you choose is effective and suitable for the area you need to treat.

We can help you with that! By checking out our guide below, we will share with you what you should be looking for in a brush killer and the best brush killers out there. Our favorite is the Roundup Concentrate and Garden Sprayer to kill all of your weeds.

The best brush killers on the market include:

  • Roundup Concentrate and Garden Sprayer—Best Overall
  • BrushTox Brush Killer with Triclopyr—Most Powerful
  • Southern Ag CROSSBOW32 Weed & Brush Killer—Works Fast
  • Spectracide Weed & Grass Killer Concentrate—Best Rain-Fast Spray
  • BioAdvanced 704640B Brush Killer—Best Value
  • Ortho MAX Poison Ivy & Tough Brush Killer with Comfort Wand—Easy To Use
  • VPG Fertilome 32295 32Oz Brush Stump Killer—Best for Tree Stumps

Best Brush Killer Reviews

Roundup Concentrate and Garden Sprayer—Best Overall

The Roundup Concentrate Poison Ivy Plus Tough Brush Killer combines two powerful ingredients: glyphosate and triclopyr. These active ingredients penetrate the leaves, stems, and roots of the toughest brush and weeds, killing them down to the ground.

It’s formulated to kill many types of weed or invasive ivy, such as poison ivy, poison sumac, and poison oak. It also kills invasive wild grapevines and can be used to kill tree stumps and prevent regrowth when undiluted. The Roundup concentrate can be diluted easily with water in the included sprayer, which then applies the brush killer directly where it’s needed the most.

Once applied, this is then rainproof in just half an hour and gives visible results within 24 hours. If you do not see the results that you wanted after four weeks, give them a second application. You should make sure that they are thoroughly saturated.

As with all brush killers, you need to be careful when using the product close to flower beds and vegetable plots. This brush killer will kill anything that it touches, which is great for weeds but not for your plants and flowers.

The product is a real success when killing unwanted weeds but not great for you, your children, or your pets to be around. Make sure that you’re wearing protective clothing and are careful not to inhale the fumes from the product. Children and pets should be kept away from the area where you are applying the killer.


  • Kills brush and weed to the ground.
  • Rainproof in 30 minutes.
  • Pressure release cap keeps vapor away.
  • Easy to mix and apply in the Roundup sprayer.


  • Can take longer than 24 hours to see results.

BrushTox Brush Killer with Triclopyr—Most Powerful

BrushTox Brush Killer is the answer to all your problems when you are overrun with woody plants and broadleaf weeds. It’s a concentrated herbicide that works wonders against oaks, wild rose, and sweetgum as well as Canada thistle, dog fennel, and poison ivy.

This heavy brush killer is powerful and contains 61 percent triclopyr, which can be toxic, so you need to be very careful when applying it. Make sure that you wear protective clothing and face wear when using the brush killer, and be careful not to inhale it.

Once the BrushTox concentrate is diluted, just one bottle will treat up to one acre of land. The product goes a long way to getting rid of your problem woody brush with just one bottle.


  • Very powerful.
  • Quick results.
  • Will not kill grass.
  • One bottle treats one acre.


  • Can be toxic, so you need to wear protective clothing.
  • Pricier than other brush killers.

Southern Ag CROSSBOW32 Weed & Brush Killer—Works Fast

The Southern Ag CROSSBOW32 weed and brush killer gives excellent results, according to users. It can be used to control most brush and weeds, as well as unwanted trees.

It gives great results by getting rid of the following invasive problem plants: poison oak, creeping charlie, poison ivy, and bramble. Due to the chemical ingredients in this product, it should be used on rangeland and non-crop areas. You should take extra care if using the product on small areas close to lawns, woody plants, and flowerbeds.

See also  How To Get Rid of Stickers in Yard

The herbicide should be diluted with water before use and then can be sprayed on the problem areas. Make sure that the weed is saturated to be able to soak up the tough brush killer into the roots.

The Southern Ag product is quick working, and you can start seeing results within a few hours. If you don’t see the results you want after 10 days, give them a second application.


  • Quick to work.
  • Safe to use near grass.
  • Kills even the toughest weeds.
  • Easy to use.


  • Some may need a second application.
  • Many weeds require a stronger concentration than what’s recommended on the instructions.

Spectracide Weed & Grass Killer Concentrate—Best Rain-Fast Spray

The Spectracide weed and grass killer concentrate is rainproof in just 15 minutes. This means that you don’t have to worry about the weather changing when applying the weed killer.

The brush killer concentrate can be used on all brush and weeds in large areas or on pathways and in flower beds. It’s great for vegetation control and will bring your garden back to its best. It’s recommended for use when the temperature is warmer, and you will get the best results at around 60 degrees Fahrenheit (15.56 °C).

You will start to see results in just three hours, and the brush killer will kill the weed directly at the root for more permanent results. You can begin to replant your flowers, shrubs, and trees the following day. This means that you can kill the weeds and replant new plants in one weekend.


  • Rainproof in just 15 minutes.
  • You can replant new flowers and shrubs the following day.
  • It can treat flower beds as well as large areas.
  • Suitable for use in warmer weather.


  • Doesn’t always kill to the root.
  • Instructions are confusing regarding quantities.

BioAdvanced 704640B Brush Killer—Best Value

The BioAdvanced Brush Killer Plus kills tough brush and weeds right down to the root. It kills over 70 different types of weeds and brush, including poison oak, poison ivy, kudzu, blackberry, and bramble.

One bottle of diluted concentrate will cover up to one acre of land. The brush killer will be rainproof in around four hours, and you will see the results from one to six weeks. You can also use the brush killer to kill tree stumps; this should be undiluted and applied with a paintbrush.

You should make sure that you wear protective clothing and be careful not to inhale the fumes from this product. Also, be careful around your lawn and plants, as these may be killed when spraying the weeds and brush.

The BioAdvanced brush killer is excellent value for money and is less expensive than other brands. It gives impressive results for the money spent.


  • Value for money.
  • Kills over 70 different species of brush and weeds.
  • Kills them down to the root.
  • One bottle covers up to one acre.


  • Only rainproof in four hours.
  • Takes a while to see any results.

Ortho MAX Poison Ivy & Tough Brush Killer with Comfort Wand—Easy To Use

The Ortho MAX poison ivy and tough brush killer is a powerful brush killer. It can easily kill over 60 different species of tough brush and weeds, such as poison ivy, kudzu, poison oak, and wild blackberries.

The product is ready to use and comes with its own comfort wand for easy application. The spray wand has a one-touch continuous spray setting for easier use in larger areas.

The brush killer is rainproof in two hours and can be used in any area of your garden or yard. Be careful not to apply it close to your lawn, flowers, or other woody plants. The killer will kill everything that it comes into contact with.

You will start to see results in 24 hours; however, it could take a few weeks for certain brush and weeds.

The active ingredient in the brush killer is triclopyr, so be careful when using it in an area where your children or pets play, and make sure to wear protective gear when applying.


  • Ready to use with included spray wand.
  • You don’t have to worry about diluting.
  • Start seeing results in 24 hours.


  • It can take weeks for some brush and weeds to die.
  • Weeds grew back quickly for some users.

VPG Fertilome 32295 32Oz Brush Stump Killer—Best for Tree Stumps

The VPG Fertilome brush stump killer is a fantastic product for use on tree stumps and tough brush such as poison ivy, unwanted woody plants, or invasive vines. It’s a concentrate that should be diluted as per the instructions for killing brush. It can be used undiluted on tree stumps and should be painted on using a paintbrush.

See also  Best Weed Puller Tool For Easy Weed Removal

The active ingredient in the brush killer is triclopyr, so take care and don’t use it when your children or pets are around. You should also wear protective clothing and be careful not to inhale the fumes from the product.

It will work on over 60 different species of brush and weeds, and you will start to see results in one week. Some types of brush or weeds can take up to six weeks to see any lasting results.

If you are using the product to kill vines that are close to other plants, cut the vine first. You should then apply the brush killer with a paintbrush as you would for a tree stump.


  • Ideal for use on tree stumps.
  • Works well on thick vines.
  • Long-lasting results.


  • Takes time to see results.
  • Smaller bottle comes with an applicator; users think the 32 oz product should also.
  • Will kill everything it touches.

Brush Killer Buying Guide

There are so many options out there when it comes to killing weeds and brush. Every product available claims that they are the best one for the job. With this in mind, you should make sure that you choose the right product for the land that you need to treat.

Not every brush killer is suitable for all types of gardens or yards. Some can do more damage than good if not used correctly. Make sure that you check what areas the brush killer should be safely used on. It should then be applied according to the manufacturer’s instructions.

We will give you some tips on what you should be looking for when choosing the best brush killer for you. This will ensure that your garden is brush-free for summer.

What Does Brush Killer Kill?

The strength of the brush killer will depend on the chemicals and ingredients added and the concentration of these. They are created to kill almost all species of brush and weeds, such as poison ivy, poison oak, Virginia creeper, kudzu, blackberry, and bramble. Many brush killers can also kill tree stumps, preventing any regrowth.

As a brush killer is strong, you should be careful when using it close to your lawn, flowerbeds, or any plants and vegetable plots. It’s able to quickly kill tough brush, so it will have no trouble killing your precious lawn, flowers, or other woody plants.

How Quickly Does Brush Killer Work?

Some brush killers have been known to give results in less than 24 hours. However, some can take weeks to give you the expected results. This will depend on the strength of the brush killer and also on the types of brush and weeds that you are trying to kill.

Brush killer will start working as soon as it’s used, and you may see the change in your brush within hours. The brush and weeds should be completely saturated for the best results. The foliage may start to wilt soon after use. You will then have to be patient for the killer to spread throughout the stems and roots.

Some tough brush is difficult to kill and may require an additional application of the brush killer to kill it at the root. If you haven’t seen the results you expected after around two weeks, give it another soaking with the brush killer spray.

What Type of Sprayer To Use?

Brush killer comes in different kinds of formulas that should be applied as recommended on the manufacturer’s instructions.

Some will be in a concentrate that should be diluted in a separate sprayer for application. Some will come ready-mixed and have a wand that you connect to the container for use. You can also get brush and weed killer in a trigger spray that can be applied directly by opening the sprayer nozzle.

Some sprayers have different nozzles so that they are suitable for all your spraying needs. There are larger fan nozzles that give you more coverage on large grass pastures or smaller nozzles that can be used for more precise spraying. The smaller nozzles should be used when killing brush or weeds close to flower beds, other woody plants, and your lawn.

You should be careful when using any type of backpack sprayer so that you don’t get any of the brush killer on other plants or vegetation. You should also wear protective clothing when using a sprayer so that the product doesn’t get on your clothes, face, or body.

See also  How to Kill Horsetail Weeds

When Is the Best Time to Spray Brush Killer?

The best time to spray brush killer would be on a dry, mild day with very little wind. The brush killer will need to soak into the brush or weed before getting them wet by rainfall. Spraying in the rain or when rain is forecast will hinder this process and dilute the brush killer.

If you’re unable to avoid the rain, choose something that becomes rainproof quickly, such as the Spectracide Weed & Grass Killer Concentrate or the Roundup Concentrate and Garden Sprayer. When it’s stopped raining for a small while, spray the herbicide, and it’ll be rainproof within half an hour or so.

You should also avoid spraying brush killer on windy days as this will spread the brush killer. You may end up killing your favorite plants, vegetables, or lawn by accident if you spray the brush killer when it’s windy.

Some brush killers work better in certain seasons, and spring would be the best season to spray. This is due to the brush and weeds being at their weakest as they are in the pre-growth season. Spraying them at this time of year will stop them from sprouting and should give you a weed-free summer.

Are Brush Killers Safe for Children or Pets?

Brush killers contain toxic chemicals as these are required to kill the brush and prevent regrowth. When using these, you should keep your children and pets away from the area that you have sprayed.

Glyphosate and triclopyr are toxic ingredients used in brush killers and should be avoided if used around children or pets. Fluazifop is not generally toxic but can be an irritant when on the skin or close to your eyes.

The manufacturer’s instructions will tell you when the product is safe to allow your children and pets to be around. This could range from a few hours to a couple of weeks, so make sure that you read the instructions properly to keep everyone safe.

There are safer, organic weed killer products out there that can be used without any danger to your children or pets. However, these may not be sufficient on tough brush or as effective as chemical killers due to the ingredients used.

When Does Weed Killer Expire?

Brush and weed killers generally have a long shelf life with no expiration date. However, you should always check the product container for details before using it at a later date. The brush killer should be stored correctly in a cool, dry location with the lid tightly sealed. Do not store it in direct sunlight or hot temperatures.

You can help to extend the life of the weed killer and keep the ingredients active by shaking the container every couple of months. This will prevent the active ingredients from settling at the bottom of the container.

Brush It Off

A brush killer could be the answer to all of your problems with overgrown brush and weeds in your garden. There are so many products out there to choose from, and they come in different strength levels with various chemical ingredients. You need to select the best brush killer for you and your outdoor space, and hopefully, our guide has made this job a little easier.

Before buying your brush killer you should look at the area you need to treat, and the time it will take to get results. You should also look at the active ingredients in the product, especially if you have children or pets around.

Many of the brush killers can be dangerous, not only to plants but to people and their pets. With this in mind, always wear protective clothing when applying the brush killer and be careful not to inhale any of the fumes or get the product on your skin.

Our favorite brush killer would be the Roundup Concentrate and Garden Sprayer, as this is a great all-around brush and weed killer that is rainproof in just 30 minutes and gives you excellent, long-lasting results.

A close runner-up would be the BrushTox Brush Killer with Triclopyr. This is a super powerful brush killer that kills pretty much all brush and weeds right down to the root.

We hope that our guide has given you the information that you need to choose the best brush killer. Once you get the right one, your yard will thank you and will look better than ever!