Tired of wild vines, thorny tangles, and poison ivy taking over your yard? The right brush killer clears tough overgrowth fast without tearing up your soil.
From BioAdvanced Brush Killer Plus and Extended Control to Roundup Poison Ivy & Tough Brush Killer and Bonide 332, these formulas tackle woody weeds and large areas with ease.
Add Ortho GroundClear liquids with wand applicators, and you have several solid options for reclaiming your space from kudzu, brambles, and more.
| BioAdvanced Brush Killer Plus Ready-to-Use Sprayer |
| Easiest To Use | Formulation Type: Ready-to-use liquid with built-in sprayer (1 gal) | Primary Targets: Poison ivy, poison oak, blackberry, brush, >75 weeds | Rainproof Time: Rainproof in 4 hours | VIEW LATEST PRICE | Read Our Analysis |
| Roundup Poison Ivy & Tough Brush Killer Concentrate |
| Fastest Results | Formulation Type: Concentrate (32 fl. oz.) | Primary Targets: Poison ivy, poison oak, poison sumac, wild blackberry, kudzu, tough weeds | Rainproof Time: Rainproof in 30 minutes | VIEW LATEST PRICE | Read Our Analysis |
| BioAdvanced Brush Killer Plus Concentrate Weed Killer 32oz |
| Best Concentrate | Formulation Type: Concentrate (32 fl. oz.) | Primary Targets: Poison ivy, poison oak, kudzu, blackberry, >75 weeds | Rainproof Time: Rainproof in 4 hours | VIEW LATEST PRICE | Read Our Analysis |
| BioAdvanced Brush Killer Plus Ready-to-Spray 32 oz |
| Best Hose-End Option | Formulation Type: Ready-to-spray hose-end concentrate (32 fl. oz.) | Primary Targets: Poison ivy, poison oak, blackberry, kudzu, >75 weeds | Rainproof Time: Rainproof in 4 hours | VIEW LATEST PRICE | Read Our Analysis |
| Bonide 332 Herbicide Poison Ivy & Brush Killer Bk-32 Concentrate 128 oz |
| Best For Lawns | Formulation Type: Concentrate (128 fl. oz.) | Primary Targets: Poison ivy, poison oak, kudzu, wild blackberries, >240 brush/weeds | Rainproof Time: Not specified | VIEW LATEST PRICE | Read Our Analysis |
| Ortho GroundClear Poison Ivy & Tough Brush Killer |
| Heavy-Duty Concentrate | Formulation Type: Concentrate (makes 8 gallons) | Primary Targets: Poison ivy, poison oak, kudzu, wild blackberry, >60 weeds/brush | Rainproof Time: Rainproof in 2 hours | VIEW LATEST PRICE | Read Our Analysis |
| BioAdvanced Extended Control Brush Killer Spray Ready-to-Use 1.3 Gallon |
| Longest-Lasting Control | Formulation Type: Ready-to-use spray (1.3 gal) | Primary Targets: Poison ivy, poison oak, blackberry, kudzu, English ivy, bamboo, listed brush | Rainproof Time: Rainproof in 4 hours | VIEW LATEST PRICE | Read Our Analysis |
| Ortho GroundClear Poison Ivy & Brush Killer Spray |
| Best Ready-to-Use Spray | Formulation Type: Ready-to-use spray with Comfort Wand (1 gal) | Primary Targets: Poison ivy, poison oak, kudzu, wild blackberry, >60 weeds/brush | Rainproof Time: Not specified | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
BioAdvanced Brush Killer Plus Ready-to-Use Sprayer
In case you feel nervous every time you walk past a patch of poison ivy or thorny brush, BioAdvanced Brush Killer Plus Ready-to-Use Sprayer is made for you. You don’t have to mix anything or guess at ratios. You just pump, point, and spray. The one gallon sprayer lets you move along fences, paths, and corners without juggling extra tools.
Next, you’ll like how it goes after the problem you can’t see. It targets roots on poison ivy, poison oak, blackberry, and over 75 other weeds using triclopyr. It works on actively growing plants, turns rainproof in 4 hours, and shows results in 1 to 6 weeks.
- Formulation Type:Ready-to-use liquid with built-in sprayer (1 gal)
- Primary Targets:Poison ivy, poison oak, blackberry, brush, >75 weeds
- Rainproof Time:Rainproof in 4 hours
- Visible Results Speed:1–6 weeks
- Application Areas:Around homes and similar areas; for actively growing brush/weeds
- Root/Systemic Action:Kills tough brush roots and listed vines
- Additional Feature:1-gallon ready sprayer
- Additional Feature:Targets roots and vines
- Additional Feature:Designed for spot treatments
Roundup Poison Ivy & Tough Brush Killer Concentrate
Tough, tangled patches of poison ivy or wild blackberry can make your yard feel off-limits, and that’s where Roundup Poison Ivy & Tough Brush Killer Concentrate really shines. You mix the concentrate with water, then spray it right where the trouble is. Each gallon covers up to 300 square feet, so you can tackle big messes without feeling daunted.
You’ll like how fast it works. It turns rainproof in about 30 minutes and starts showing results within hours on poison ivy, poison oak, sumac, kudzu, and woody stumps. After treatment, you can usually plant again within 1 to 30 days, following the booklet.
- Formulation Type:Concentrate (32 fl. oz.)
- Primary Targets:Poison ivy, poison oak, poison sumac, wild blackberry, kudzu, tough weeds
- Rainproof Time:Rainproof in 30 minutes
- Visible Results Speed:Within hours
- Application Areas:Fields, trails, around trees/shrubs, homes, buildings, cabins, lodges, campsites, fences, foundations, vines on poles/mature trees, woody stumps
- Root/Systemic Action:Systemic brush killer for tough weeds and woody stumps
- Additional Feature:Visible results within hours
- Additional Feature:Plant new vegetation sooner
- Additional Feature:Freshly cut stump control
BioAdvanced Brush Killer Plus Concentrate Weed Killer 32oz
Homeowners who feel stuck battling poison ivy, poison oak, or sprawling brush often find that BioAdvanced Brush Killer Plus Concentrate Weed Killer 32oz gives them the extra power they’ve been missing. You’re not just burning off leaves here. With 8.8 percent triclopyr, this systemic formula moves through leaves and roots to shut down plant growth from the inside.
You can use it on more than 75 weed and brush types, including kudzu and blackberry, around homes, cabins, fences, and trails. Apply once foliage is fully leafed out. It becomes rainproof in 4 hours, shows results in 1 to 6 weeks, and even treats fresh stumps at full strength with a simple paintbrush.
- Formulation Type:Concentrate (32 fl. oz.)
- Primary Targets:Poison ivy, poison oak, kudzu, blackberry, >75 weeds
- Rainproof Time:Rainproof in 4 hours
- Visible Results Speed:1–6 weeks
- Application Areas:Around homes, cabins, buildings, fences, walkways, trails, wooded areas; stumps
- Root/Systemic Action:Systemic herbicide enters through leaves/roots; kills brush roots
- Additional Feature:Covers up to 4,000 sq.ft.
- Additional Feature:Full-strength stump painting
- Additional Feature:Systemic leaf and root
BioAdvanced Brush Killer Plus Ready-to-Spray 32 oz
BioAdvanced Brush Killer Plus Ready-to-Spray, 32 oz is a strong fit anytime you’re worn out from fighting poison ivy, poison oak, blackberry, and other stubborn brush that just keeps coming back. You hook it to your hose, turn on the water, and you’re ready. There’s no mixing, no guessing, and no heavy lifting with this 2.13 pound bottle.
You’ll like that it tackles over 75 tough weeds, even monsters like kudzu, using 8.8 percent triclopyr. One bottle treats up to 4,000 square feet. It turns rainproof within 4 hours, then slowly dries out roots over 1 to 6 weeks so they don’t regrow.
- Formulation Type:Ready-to-spray hose-end concentrate (32 fl. oz.)
- Primary Targets:Poison ivy, poison oak, blackberry, kudzu, >75 weeds
- Rainproof Time:Rainproof in 4 hours
- Visible Results Speed:1–6 weeks
- Application Areas:Lawns/landscapes with brush and overgrowth (up to 4,000 sq. ft.)
- Root/Systemic Action:Systemic triclopyr-based brush killer; kills roots
- Additional Feature:Hose-end ready-to-spray
- Additional Feature:32-ounce light package
- Additional Feature:High weed count coverage
Bonide 332 Herbicide Poison Ivy & Brush Killer Bk-32 Concentrate 128 oz
Should you be tired of battling poison ivy, thorny vines, and stubborn brush that keep coming back, Bonide 332 Poison Ivy & Brush Killer Bk-32 Concentrate in the 128 oz size gives you the kind of control that finally feels like a win. You can mix it in a tank or hose-end sprayer, then soak poison ivy, poison oak, kudzu, wild blackberries, thistle, and more than 240 other tough weeds.
You can also use it undiluted on fresh tree stumps with a paintbrush, so they don’t resprout. It’s designed to spare your lawn, staying safe on Bluegrass, Fescue, Rye, Bent, Bermuda, Bahia, and Zoysia provided you follow the label.
- Formulation Type:Concentrate (128 fl. oz.)
- Primary Targets:Poison ivy, poison oak, kudzu, wild blackberries, >240 brush/weeds
- Rainproof Time:Not specified
- Visible Results Speed:Not specified
- Application Areas:Lawns (multiple turf types), brushy areas, tree stumps
- Root/Systemic Action:Brush/woody weed killer; labeled for stump treatment (root kill)
- Additional Feature:Controls over 240 weeds
- Additional Feature:Safe on listed lawns
- Additional Feature:Undiluted stump treatment
Ortho GroundClear Poison Ivy & Tough Brush Killer
Should you be worn out from battling poison ivy, thorny brush, and stubborn vines that just won’t quit, Ortho GroundClear Poison Ivy & Tough Brush Killer can feel like finally having backup that actually shows up. This concentrate makes up to 8 gallons, so you can tackle long fence lines, cabin paths, and rough corners without running out halfway through.
You mix it with water, then spray it on leafed out, actively growing weeds. It moves through the leaves into the whole plant, hitting poison ivy, poison oak, kudzu, wild blackberry, and more than 60 tough invaders. It’s rainproof in 2 hours, but it works slowly, so expect wilting in 2 to 6 weeks. Always follow the label and use safety gear so your cleanup feels powerful, not risky.
- Formulation Type:Concentrate (makes 8 gallons)
- Primary Targets:Poison ivy, poison oak, kudzu, wild blackberry, >60 weeds/brush
- Rainproof Time:Rainproof in 2 hours
- Visible Results Speed:Wilting/yellowing in 2–6 weeks
- Application Areas:Non-garden areas around homes, cabins, buildings, fences, trails
- Root/Systemic Action:Systemic; moves through plant from leaves to roots
- Additional Feature:Makes 8 gallons solution
- Additional Feature:Wilting in 2–6 weeks
- Additional Feature:Leaf-absorbed systemic action
BioAdvanced Extended Control Brush Killer Spray Ready-to-Use 1.3 Gallon
Should you be tired of watching poison ivy and other stubborn brush keep coming back no matter what you try, this ready-to-use BioAdvanced Extended Control Brush Killer Spray can feel like a real relief. You just grab the 1.3 gallon container, point, and spray. There’s no mixing, no guessing, and no wrestling with extra tools.
This formula moves through the plant, so it doesn’t just burn the leaves. It travels to the roots and shuts the whole plant down. You can tackle poison ivy, poison oak, blackberry, kudzu, English ivy, even bamboo. It becomes rainproof in 4 hours, then keeps working and protecting bare soil for up to 12 months.
- Formulation Type:Ready-to-use spray (1.3 gal)
- Primary Targets:Poison ivy, poison oak, blackberry, kudzu, English ivy, bamboo, listed brush
- Rainproof Time:Rainproof in 4 hours
- Visible Results Speed:1–28 days
- Application Areas:Areas with established brush and vines around properties
- Root/Systemic Action:Systemic formula; kills down to the root with extended control
- Additional Feature:Up to 12-month control
- Additional Feature:Especially strong on ivy
- Additional Feature:Targets bamboo and kudzu
Ortho GroundClear Poison Ivy & Brush Killer Spray
Ortho GroundClear Poison Ivy & Brush Killer Spray is a smart pick should you be tired of battling stubborn, painful plants like poison ivy and poison oak and you just want them gone for good. You spray the leaves and let the systemic formula pull the killer down into the roots, so the plant can’t creep back.
You’ll see wilting and browning in as little as an hour, which feels incredibly satisfying whenever vines have taken over trails, fences, or the side of your cabin. The 1 gallon jug and Comfort Wand help you stay comfortable while you treat large patches without constant bending.
- Formulation Type:Ready-to-use spray with Comfort Wand (1 gal)
- Primary Targets:Poison ivy, poison oak, kudzu, wild blackberry, >60 weeds/brush
- Rainproof Time:Not specified
- Visible Results Speed:Within 1 hour
- Application Areas:Non-garden areas around homes, cabins, buildings, fences, trails
- Root/Systemic Action:Systemic formula that kills weeds down to the root
- Additional Feature:Comfort Wand applicator included
- Additional Feature:Results in about 1 hour
- Additional Feature:No pumping or bending
Factors to Consider When Choosing Brush Killers
At the time someone selects a brush killer, a few key details quietly determine whether the product feels like a victory or a regret. It helps to look closely at what types of weeds it controls, how it is applied, how fast it becomes rainproof, how long it keeps working in the soil, and how safely it treats nearby lawns and plants. Through evaluating these factors together, a person can match the product to the yard, the weather, and the level of protection they want.
Target Weed Spectrum
Surprisingly, the most essential part of choosing a brush killer is not the brand or the bottle, but the range of weeds it can actually control. At the time someone faces thick overgrowth, they usually deal with many plant types at once. So the product’s target weed range really shapes how much peace of mind they get later.
A strong brush killer typically handles tough roots and invasive pests like poison ivy, poison oak, kudzu, and wild blackberry, along with 60 to 240 other weeds. Many formulas use systemic ingredients that move through leaves and roots, so the whole plant dies, not just the top. Some also hit vines, woody stumps, and broadleaf lawn weeds such as dandelion, clover, chickweed, and thistle for complete cleanup.
Application Method Type
Choosing the right application method for a brush killer often matters just as much as choosing the formula itself, because it shapes how hard the job feels and how clean the results look. At the point someone wants the easiest path, ready-to-use sprays help a lot. The built-in wands give precise control, reduce bending, and keep hands from getting tired so the work feels less overwhelming.
Concentrates fit bigger or repeated jobs. The user mixes them with water, then chooses how to apply, such as a tank sprayer for wide areas or a handheld sprayer for spot work. For stubborn woody plants, painting the product directly on cut stems or stumps gives sharp, targeted results. No matter the method, timing on actively growing, leafed-out plants remains essential.
Rainfast Time Frame
How soon will rain wash away all that hard work in the yard? That worry is exactly why the rainfast time frame matters so much during choosing a brush killer. This time frame is how long the product needs on the leaves before it becomes rainproof.
A shorter rainfast period lets the spray lock in quickly, often in 30 minutes to a few hours, depending on the formula and active ingredient. Once that window is complete, light or moderate rain is far less likely to wash treatment away.
Because of this, it helps to watch the forecast, plan around showers, and follow the label closely. That way, the brush killer has enough time to soak in and do its job.
Residual Control Duration
During the period someone is fighting stubborn brush year after year, residual control duration quickly becomes one of the most vital things to look at. It simply means how long a brush killer keeps stopping new growth after it is sprayed.
Some products keep working for a few months, while others can block regrowth for up to 12 months. Longer control can feel like a deep breath of relief, because it cuts down on constant re-spraying, saving time, energy, and fuel costs.
However, real-world duration never depends on the label alone. It also hinges on the active ingredient, how concentrated it is, and how it behaves in the soil. Then weather steps in. Heavy rainfall, sandy soil, or repeated soaking can shorten that promised control window.
Lawn and Plant Safety
Even before anyone considers how strong a brush killer is, there is usually a quiet worry in the back of the mind about the lawn and favorite plants. That worry is valid, and it should guide the choice.
A careful buyer checks that the product is labeled as safe for common turfgrasses like Bluegrass, Fescue, Rye, Bent, Bermuda, Bahia, and Zoysia. This way, the brush dies but the lawn keeps its color and thickness. It also helps to choose a formula that targets broadleaf weeds while leaving turfgrass unharmed.
When brush grows near flower beds or trees, it is crucial to confirm the product is approved for use around ornamentals. Then, through following label directions and avoiding windy days, people reduce drift, runoff, and surprise damage.
