Weed Control
Best Brush Killer: The Method Decides the Formulation
Penn State: an oil-based triclopyr ester goes on any time after cutting; a water-based one must be applied immediately. Choose the method, then the bottle.
Brush and Poison Ivy Herbicide (concentrate)
BioAdvanced Brush Killer Plus Concentrate, 32 oz Review
★★★★★ 4.6/5
our editor rating how we score4.3/5 from 4,792 shoppers at Amazon — their number, not ours.
$22–$28
Typical price · 32 oz concentrate; at Alabama Extension's 4 oz per gallon foliar rate, one bottle makes 8 gal of spray
Affiliate links — see our disclosure. Commissions never influence verdicts.
The product Alabama Extension's own kudzu control table lists by name, at the strength that table gives — 8.8% triclopyr amine.
Our Verdict
This is the least glamorous recommendation on the site and one of the best supported, because we are not the ones making it. Alabama Cooperative Extension's residential kudzu publication carries a table of retail products, and this one is on it under its former Bayer Advanced name at triclopyr amine 8.8% — the same registration (EPA 92564-6) that BioAdvanced sells today, registered as 'Triclopyr 8.8% Concentrate Herbicide'. Their foliar figure is 4 oz per gallon treating 500 sq ft, and 100% undiluted for a cut stump. What you are buying is the amine salt of triclopyr at a strength that makes a 32 oz bottle cover eight gallons of finished spray, which is roughly a tenth the cost per treated area of a ready-to-use jug of the same chemistry. The trade is that you mix it yourself, in gloves, on a job where the plant you are treating is the reason you are wearing gloves. Note it is chemically identical in active and strength to the Fertilome bottle we also review — buy whichever is cheaper the day you look.
✅ Pros
- The product Alabama Extension's residential kudzu table lists by name, at 8.8% triclopyr amine
- Extension's own rates: 4 oz per gallon foliar, 100% undiluted for cut stumps
- About a tenth the cost per treated area of the same chemistry sold ready-to-use
- 4.3 across 4,792 Amazon ratings
⚠️ Cons
- Mixing and measuring on a job where you are already handling a plant you do not want to touch
- Chemically identical to the Fertilome 8.8% bottle here — no reason to own both
- Non-selective on broadleaf plants: it kills desirable shrubs and vines it contacts
- Amine salt rather than ester, so it is less effective on thick bark than a basal-oil ester treatment
Product type
Brush and Poison Ivy Herbicide (concentrate)
Active ingredient
Triclopyr, triethylamine salt 8.8%
Price range
$22–$28
Coverage
32 oz concentrate; at Alabama Extension's 4 oz per gallon foliar rate, one bottle makes 8 gal of spray
Best for
Poison ivy, kudzu and brush at property scale, mixed to the rate an extension table actually publishes
our editor rating
4.6 out of 5
Where our facts come from
Label read on EPA's label database
EPA Reg. No. 92564-6
We opened this product's accepted label on EPA's own Pesticide Product Label System — the strongest source available for what a product is registered to do.
What we found when we read it
EPA PPLS registry record read 2026-08-02: registered product name 'TRICLOPYR 8.8% CONCENTRATE HERBICIDE', EPA Reg. 92564-6, active ingredient triclopyr triethylamine salt 8.8%, with BIOADVANCED BRUSH KILLER PLUS CONCENTRATE and BAYER ADVANCED BRUSH KILLER PLUS CONCENTRATE among its alternate brand names — which is how it ties to the row in Alabama Extension ANR-2168. Registration transferred from Bayer Advanced 2017-03-27. The rates quoted in this record are Alabama Extension's published figures for this product, not readings from the label PDF; the full label text has not been read, so no site or restriction claim here rests on it.
Where this page and the container disagree, the container wins — the label is the legal authority on rates and restrictions. How to read one yourself.
Common questions
Common Questions
How much does BioAdvanced Brush Killer Plus Concentrate, 32 oz cost?
BioAdvanced Brush Killer Plus Concentrate, 32 oz typically runs $22–$28, covering 32 oz concentrate; at Alabama Extension's 4 oz per gallon foliar rate, one bottle makes 8 gal of spray.
What does BioAdvanced Brush Killer Plus Concentrate, 32 oz treat?
BioAdvanced Brush Killer Plus Concentrate, 32 oz targets poison ivy, kudzu, brush, woody vines, honeysuckle, blackberry.
What is the active ingredient in BioAdvanced Brush Killer Plus Concentrate, 32 oz?
Triclopyr, triethylamine salt 8.8%, registered under EPA Reg. No. 92564-6.
What is the biggest downside of BioAdvanced Brush Killer Plus Concentrate, 32 oz?
Mixing and measuring on a job where you are already handling a plant you do not want to touch
Real feedback
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Related Guides
Weed Control
Triclopyr Ester vs Amine: Same Active, Different Risk
Both bottles say triclopyr. The words after it decide whether the spray stays where you put it — MSU measured ester drift injury at 50, amine under 20.
Weed Control
Brush Control in Pasture: Mowing Multiflora Rose Spreads It
Penn State: a cane tip touching the ground roots and makes a new plant. Mowing takes three to six passes a season for over a year — or 8 to 10 goats per acre.
Weed Control
How to Kill Kudzu: The Big Root Is Not the Target
Alabama Extension: the large woody root cannot sprout. Kudzu regrows from root crowns at the soil surface — which is what you can actually reach and kill.
Weed Control
How to Kill Poison Ivy: The Rash Comes From Cutting It
UGA: the toxin is not normally on the outside surface of intact leaves and stems. So the dangerous act is breaking the plant — which is what pulling does.
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