BioAdvanced Extended Control Brush Killer Concentrate - 12 Month

In this review the BioAdvanced Extended Control Brush Killer concentrate is evaluated for homeowners and property managers who need long-term brush control. The bottom line: it is best for users who want a single-application solution that claims to kill roots and protect for up to 12 months across broad areas; the 32 oz bottle concentrates enough solution to treat up to 4,000 sq ft and offers fast visible results for actively growing brush. This review highlights ease of use, rainproof performance, and a few practical drawbacks reported by customers.

Key Features

• 12 month control: Provides year-long root-killing protection for listed brush so follow-up treatments are less frequent.
• Concentrated formula: The 32 oz concentrate mixes to cover up to 4,000 sq ft, making it suitable for larger yards and properties.
• Fast visible results: Visual symptoms such as wilting and yellowing can appear within 1 to 28 days, with some users reporting changes in minutes to a day.
• Rainproof protection: Systemic rainproof action sets in about 4 hours so scheduled applications withstand light rain shortly after treatment.
• Root and stump control: The formula targets roots and can be used on stumps, offering a more permanent solution than surface-only contact killers.

Who It's For

This product is aimed at homeowners, property managers and gardeners dealing with persistent brush like poison ivy, poison oak, blackberry, kudzu, English ivy and bamboo who prefer a concentrated chemical solution that can be mixed to cover large areas. It suits users who want a knockdown that moves systemically to the root and offers up to a year of control after application.

It is less appropriate for small patios or for people who need an included sprayer or who are sensitive to concentrated herbicides; some buyers noted issues with package leakage and pump strength, and those who prioritize natural or nonchemical options should look elsewhere.

Pros & Cons

Pros

• Long-lasting control reduces frequency of reapplication for many listed brush species.
• Concentrate covers a large area from a single 32 oz bottle, which can be economical for big yards.
• Systemic action and rainproof protection allow treatment even with variable weather conditions.

Cons

• Some customers reported leakage and weak pump packaging, and no sprayer is included, so an external spray rig may be required.
• Mixed reports on value and occasional failures to fully control tough specimens suggest results can vary by species and application.

Specifications

Our Verdict

For anyone managing recurring brush problems over moderate to large areas, this concentrate is a practical choice because it combines systemic root control with long protection and decent coverage per bottle. Buyers should plan to use their own sprayer and be aware that outcomes vary by plant type and application technique, but overall it offers solid value for users seeking up to 12 months of control.

Frequently Asked Questions

How long before results are visible?
Visual symptoms can appear in minutes to 28 days depending on species and conditions, with many users seeing wilting within a day.

Can it be used on stumps?
Yes, the concentrate can be applied to stumps to help prevent regrowth when used according to directions.

Is it ready to spray out of the bottle?
No, this is a concentrate that must be mixed and typically applied with a separate sprayer; the package does not include a full-strength spray applicator.