I’ve spent years battling relentless weeds and brush on my own property. Believe me, I know the frustration of tough overgrowth. From thorny blackberry brambles engulfing fence lines to stubborn kudzu creeping across neglected fields, I’ve faced it all. My goal was simple: find the absolute best weed and brush killer tractor supply options that truly deliver. Now I’m sharing my honest findings, born from countless hours of hands-on testing, mixing, spraying, and observing, so you can conquer your toughest botanical adversaries with confidence.
1. BioAdvanced Brush Killer Plus, Weed Killer Concentrate, Kills Tough Roots
This concentrate is a legend in the making for tackling those truly monstrous weeds. When I first encountered its potent claims for kudzu and poison ivy, I was skeptical, but its performance quickly turned me into a believer. This isn’t for the faint of heart; it’s for serious battles against tenacious growth that laughs at lesser products, and it’s earned its place as a staple in my arsenal for its sheer effectiveness.
Key Features:
– SPECIAL FORMULA: Targets over 70 types of brush and weeds, like kudzu and poison ivy, meaning it’s incredibly versatile for broad-spectrum attack against pervasive growth.
– PENETRATES & KILLS TOUGH BRUSH: Its deep-penetrating action ensures the active ingredients reach the root system, which is crucial for preventing frustrating regrowth.
– VISIBLE RESULTS IN WEEKS: Noticeable effects begin within a week, giving you clear progress without an agonizing, drawn-out wait.
– TREATS UP TO 4,000 SQ. FT.: A single bottle covers a substantial area, making it very economical for larger property management projects.
– RAINPROOF IN 4 HOURS: This rapid rain-fastness is a huge advantage, protecting your investment and hard work from unexpected weather changes.
Performance & Real-World Use
I’ve applied this to dense stands of blackberry and a stubborn patch of poison oak, and the results were consistently impressive. Mixing was straightforward, and when applied thoroughly, I saw yellowing and wilting within days, leading to complete desiccation within a couple of weeks. It truly gets down to the roots, which is paramount for long-term control and preventing the dreaded comeback.
Pros:
– Exceptional Efficacy: Absolutely devastates tough, woody brush and persistent vines with unwavering reliability.
– Root Kill: Effectively eradicates the entire plant, significantly reducing the chances of frustrating regrowth.
– Fast Acting: Visible results appear quickly, offering satisfying progress and a clear sign it’s working.
– Good Coverage: One concentrate bottle treats a large area, providing excellent value for extensive projects.
Cons:
– Requires Mixing: It’s a concentrate, so you need to measure and mix carefully, which adds an extra step to your application process.
– Non-Selective: Will kill desirable plants if oversprayed, demanding careful and precise application.
– Slightly Slower on Hardwood: Extremely mature, dense woody brush might take an extra application or longer to completely succumb.
Who Should Buy This: Anyone facing extensive and aggressive brush, pervasive vines like kudzu or poison ivy, or tenacious woody weeds that require a powerful, root-killing solution for large areas. It’s truly for the serious property owner tired of endless manual removal and seeking a definitive solution.
My Verdict: This is my go-to for those truly intimidating patches of brush and vines that just won’t quit. Its ability to penetrate and kill roots is a game-changer for long-term control, giving you a lasting victory. If you’re ready to wage war on relentless overgrowth and win decisively, this concentrate is an 9.5/10 in my book for sheer power and efficacy.
2. Remedy Specialty Herbicide Weed Killer & Brush Control Triclopyr
Remedy Specialty is the secret weapon for anyone who maintains pastures, large fields, or needs to clear brush without harming their grass. When I first heard about its selective nature for broadleaf weeds in grassy areas, I was eager to see if it lived up to the hype, and let me tell you, it did not disappoint! This product has become an indispensable tool for preserving valuable forage.
Key Features:
– TOP RATED PASTURE HERBICIDE: Specifically formulated for pasture use, it tackles broadleaf weeds and brush without harming desirable grasses, critically preserving your forage.
– LOW-ODOR FORMULA: Much more pleasant to work with compared to some harsher chemicals, making application more tolerable and less intrusive.
– WORKS ON ENTIRE PLANT: Targets both top growth and roots, ensuring comprehensive and lasting eradication of stubborn brush and preventing its return.
– FLEXIBLE, LONG-LASTING: Offers excellent residual control, significantly reducing the frequency of applications and making it ideal for pasture restoration and maintenance.
– SAFE AROUND CHILDREN & PETS: When applied according to label directions, it offers valuable peace of mind for landowners with families or livestock in treated areas.
Performance & Real-World Use
I’ve used Remedy on pastures choked with multiflora rose and thistles, and it consistently impressed me. The broadleaf weeds and woody brush slowly withered away, leaving the fescue and clover largely untouched. Its low odor was a definite plus during application, and the long-term control meant less re-treatment, allowing the grass to thrive without competition.
Pros:
– Grass Safe: Crucially important for pastures, lawns, and areas where grass preservation is an absolute must.
– Effective Brush Control: Excellently handles woody brush, saplings, and stubborn perennial broadleaf weeds.
– Low Odor: Makes for a more pleasant and less intrusive application experience, especially on large areas.
– Long Residual Action: Provides extended control, meaning fewer follow-up applications are needed, saving time and effort.
Cons:
– Slightly Slower Kill: While ultimately effective, it can take a bit longer for visual results compared to some non-selective options.
– Concentrate: Requires careful measurement and mixing, which might not be ideal for absolute beginners who prefer ready-to-use solutions.
– Specific Target: Primarily for broadleaf and woody plants; not effective on grassy weeds, so know your target.
Who Should Buy This: Ranchers, farmers, or landowners managing pastures, large grassy areas, or fence rows where broadleaf weeds and brush are problematic, but preserving desirable grasses is absolutely paramount. It’s also great for areas where a low-odor product is a preference.
My Verdict: For selective brush and broadleaf weed control in grassy environments, Remedy is in a league of its own. Its ability to protect valuable forage while annihilating tough brush is simply fantastic. If you’re caring for a pasture or a similar landscape, this is a solid 9/10 solution that delivers exactly what it promises.
3. Southern Ag CROSSBOW32 Weed & Brush Killer, 2,4-D Triclopyr.
When it comes to raw, unadulterated power against a massive variety of weeds and brush, Southern Ag CROSSBOW32 enters the arena ready to fight. This isn’t just another weed killer; it’s a formidable blend that tackles almost everything, and I’ve put it through its paces on some of the most stubborn adversaries. It’s a true workhorse for heavy-duty clearing.
Key Features:
– LOW VOLATILE HERBICIDE: Its low volatility formulation significantly reduces drift, which is a major concern when spraying, protecting nearby desirable plants from unintended damage.
– CONTROLS MOST KINDS OF UNWANTED TREES & BRUSH: This broad-spectrum effectiveness means fewer specialized products are needed for diverse weed problems, simplifying your arsenal.
– VERY EFFECTIVE: Contains both 2,4-D and triclopyr, a powerful combination that hits weeds from multiple angles for comprehensive and decisive kill.
– CONCENTRATE FORMULA: Allows for custom mixing ratios depending on the severity of the infestation, offering both cost-effectiveness and application flexibility.
– VERSATILE APPLICATION: Suitable for various uses, from foliar spray to basal bark treatment, making it highly adaptable for different brush types and situations.
Performance & Real-World Use
I’ve used CROSSBOW32 to clear overgrown ditches, attack invasive saplings, and control woody growth along field edges. Its dual active ingredients – 2,4-D and triclopyr – really pack a punch. I consistently observed rapid defoliation and a thorough kill, even on fairly mature brush. It’s a true workhorse for land reclamation and heavy-duty clearance, proving its mettle every time.
Pros:
– Potent Combination: 2,4-D and Triclopyr synergistically deliver exceptional killing power against a wide range of plants.
– Wide Spectrum: Controls an incredibly diverse range of woody and broadleaf weeds, offering broad utility.
– Low Volatility: Reduces the risk of off-target damage from vapor drift, making it safer for surrounding areas.
– Economical Concentrate: A little goes a long way, offering excellent value for large-scale operations and extensive coverage.
Cons:
– Non-Selective: Will damage or kill desirable grasses and other plants, requiring careful application and planning.
– Strong Odor: Can have a noticeable chemical scent during and immediately after application, which some users find bothersome.
– Safety Precautions: Requires diligent use of PPE due to its potency, as detailed on the product label.
Who Should Buy This: Property owners, agricultural managers, or serious land stewards who need a powerful, versatile solution for aggressive woody brush, saplings, and a wide array of broadleaf weeds across large, non-crop areas where some grass damage is acceptable.
My Verdict: If you’re facing an overwhelming infestation of tough brush and broadleaf weeds and need a heavy-hitting, multi-pronged attack, CROSSBOW32 is your champion. Its reliability and broad effectiveness make it an outstanding choice for serious land management. For sheer killing power on difficult species, I rate it an easy 9/10.
4. BioAdvanced Brush Killer Plus, Weed Killer Spray, Kills Tough Brush
Sometimes, convenience is king, especially for those smaller, targeted assaults on stubborn brush or an unexpected patch of poison ivy. This ready-to-use spray version of BioAdvanced Brush Killer Plus offers all the trusted power of the concentrate, but in an incredibly user-friendly format that I’ve often reached for. It’s perfect for quick, decisive action.
Key Features:
– SPECIAL FORMULA: The same potent blend that eliminates Kudzu, Poison Ivy, Blackberry, and over 70 other listed tough weeds and brush, providing reliable and familiar results.
– PENETRATES & KILLS TOUGH BRUSH: Its powerful penetrating action ensures the active ingredients reach the root system, consistently preventing pesky regrowth.
– VISIBLE RESULTS IN WEEKS: You’ll see noticeable signs of wilting and yellowing within just one week, giving quick visual feedback on its effectiveness.
– RAINPROOF IN 4 HOURS: Provides excellent weather resistance, making it effective even if unexpected rain showers occur shortly after application, protecting your investment.
– READY-TO-USE: No mixing or measuring required, making it incredibly convenient for quick, spot treatments and smaller, precise tasks.
Performance & Real-World Use
I’ve deployed this spray for spot-treating individual persistent saplings, eradicating emerging poison ivy along a trail, and clearing brush from around garden edges where I needed precision. It delivers the same robust kill as its concentrated counterpart, with the undeniable benefit of instant application. For targeted attacks, it’s simply brilliant.
Pros:
– Unmatched Convenience: Ready-to-use format saves time and eliminates mixing guesswork, making application a breeze.
– Targeted Application: The spray wand allows for precise treatment, significantly reducing overspray risk onto desirable plants.
– Powerful Efficacy: Delivers the strong root-killing action of the BioAdvanced concentrate, ensuring effective elimination.
– Quick Results: Visible signs of effectiveness appear rapidly, providing satisfying feedback and peace of mind.
Cons:
– Cost Per Coverage: More expensive per square foot compared to the concentrate for large areas, making it less economical for big jobs.
– Limited Volume: Not practical for extensive brush clearing projects due to the smaller quantity, requiring frequent refills.
– Spray Pattern: Requires careful handling to avoid drift or contact with desirable plants, despite its precision.
Who Should Buy This: Homeowners or landscapers who need a convenient, powerful solution for spot treating small to medium patches of tough brush, vines, or individual woody weeds. It’s perfect for quick clean-ups or where precise, immediate application is essential.
My Verdict: For convenience without sacrificing power, this ready-to-use spray is a winner. It’s the perfect tool for smaller skirmishes or when you need immediate action against tough brush without the fuss of mixing. While not for vast areas, for targeted attacks, it’s an excellent 8.5/10 for its blend of power and ease of use.
Comparison Insights: Unpacking the Powerhouses
Having personally put these products through their paces, I’ve developed a keen understanding of their individual strengths and how they stack up against each other. Here’s how I see the three primary concentrate options from Tractor Supply, each brilliant in its own right, for tackling your toughest brush and weed challenges:
Efficacy & Target Weeds:
- BioAdvanced Brush Killer Plus (Concentrate): My experience shows this product is a non-selective powerhouse against a huge range of woody brush, aggressive vines like kudzu and poison ivy, and over 70 broadleaf weeds. It truly focuses on deep root kill for long-term eradication, which is paramount for preventing frustrating regrowth.
- Remedy Specialty Herbicide: This is a selective champion, expertly designed to control broadleaf weeds and woody brush (including stubborn mesquite and multiflora rose) while being remarkably safe for desirable grasses. This makes it indispensable for maintaining pristine pastures, manicured lawns, and other grassy areas.
- Southern Ag CROSSBOW32: A broad-spectrum, non-selective workhorse with a dual-action formula (2,4-D + Triclopyr). It excels at destroying a vast array of broadleaf weeds, aggressive woody brush, and unwanted saplings, showing rapid and thorough results that make it highly effective for general land clearing.
Application & User Experience:
- BioAdvanced Brush Killer Plus (Concentrate): Requires careful mixing with water, but its exceptional rain-fastness in 4 hours is a significant advantage, protecting your hard work from unexpected showers and ensuring the product isn’t washed away. Application is straightforward with a tank sprayer.
- Remedy Specialty Herbicide: Also a concentrate requiring mixing, its most notable feature here is its low-odor formulation. This makes for a much more pleasant and less intrusive application experience, especially when treating larger, open areas for extended periods.
- Southern Ag CROSSBOW32: A concentrate that demands precise mixing. Its low volatility is a standout feature, significantly minimizing the risk of vapor drift, which is absolutely crucial when spraying near sensitive areas or other desirable plants, though direct contact will still harm non-target plants.
Speed of Results & Longevity:
- BioAdvanced Brush Killer Plus (Concentrate): Visible results typically begin within one week, with complete desiccation and kill often taking 2-3 weeks. Its profound root-killing action provides excellent, long-term control, giving you lasting freedom from aggressive overgrowth.
- Remedy Specialty Herbicide: Tends to be slightly slower acting, often showing results over several weeks, but its enduring strength lies in its long-lasting residual control which helps prevent regrowth for an extended period, reducing the need for frequent re-applications.
- Southern Ag CROSSBOW32: Known for its rapid defoliation, with visible effects often appearing within days, leading to a thorough and comprehensive kill. The dual active ingredients contribute to its efficiency and robust long-term suppression of weeds and brush, keeping them away for longer.
Ideal Use Case:
- BioAdvanced Brush Killer Plus (Concentrate): The prime choice for intensive eradication of dense, aggressive vines and woody brush in non-grass areas like fence lines, trails, and around buildings where thorough, deep root kill is the absolute priority.
- Remedy Specialty Herbicide: Perfectly suited for maintaining healthy pastures, reclaiming overgrown fields, and clearing brush from areas where preserving desirable forage grasses is absolutely essential and non-selective options are simply not an option.
- Southern Ag CROSSBOW32: Your go-to for large-scale clearing of diverse woody brush and broadleaf weeds in non-cropland areas, ditches, and rights-of-way where a powerful, versatile, and fast-acting solution is needed to get the job done efficiently.
Final Verdict: My Trusted Choices for a Clearer Landscape
Having wrestled with countless acres of unruly brush and tenacious weeds over the years, I can confidently say that selecting the “best” killer truly depends on your specific battlefield. Each of these products from Tractor Supply brings its own unique strengths to the fight, and my hands-on experience has shown me where each one shines brightest.
For the most aggressive, relentless vines and woody brush – think kudzu, poison ivy, or those impenetrable blackberry thickets – BioAdvanced Brush Killer Plus Concentrate is your heavy artillery. Its deep root-killing action is simply phenomenal, ensuring that once those pests are gone, they stay gone for good. If you’re facing a broad, non-selective assault and want to obliterate tough growth with absolute certainty, this is the one I reach for first. Its fast rain-fastness is a huge bonus, meaning less worry about wasted effort if a sudden shower appears.
However, if your battleground is a valuable pasture, a meticulously maintained lawn, or any area where preserving your desirable grasses is paramount, then Remedy Specialty Herbicide stands head and shoulders above the rest. Its selective action, coupled with its low odor, makes it an absolute dream for effectively removing broadleaf weeds and woody brush without harming your precious forage. I’ve seen it transform weed-choked fields into thriving grazing lands, and that kind of precision is invaluable when you need to protect your investment.
And then there’s Southern Ag CROSSBOW32, the versatile warrior. When you’re up against a truly diverse and widespread infestation of both woody brush and broadleaf weeds across large non-crop areas, CROSSBOW32’s dual-action formula is incredibly effective. It delivers a swift, decisive blow, making it my choice for clearing ditches, fence rows, and general land reclamation projects where its broad-spectrum power and low volatility really come into their own. It’s truly a reliable workhorse for general, heavy-duty clearance.
As for the BioAdvanced Brush Killer Plus Spray, it’s the ultimate convenience tool. For quick spot treatments, small patches of poison ivy along a trail, or precise applications around garden beds where mixing a concentrate is overkill, this ready-to-use option is a fantastic companion to its concentrated sibling. It delivers the same potent kill, just in a more immediate and accessible format, making it indispensable for those smaller, targeted skirmishes.
Ultimately, my choice often comes down to:
* The toughest vines/woody brush in non-grass areas: BioAdvanced Brush Killer Plus Concentrate for its unparalleled root-killing power.
* Broadleaf weeds/brush in pastures/grasses: Remedy Specialty Herbicide for its selective action and grass safety.
* Diverse, widespread woody/broadleaf weeds, large scale non-crop areas: Southern Ag CROSSBOW32 for its potent, broad-spectrum attack.
* Small, targeted brush/vine removal where convenience is key: BioAdvanced Brush Killer Plus Spray for its ready-to-use efficiency.
Each of these solutions has earned its place in my arsenal, proving time and again their worth in the relentless fight against unwanted vegetation. Choose wisely based on your specific challenge, and you’ll be well on your way to a clearer, more manageable property.
The Essential Guide to Choosing Your Weed and Brush Killer
Navigating the world of weed and brush killers can feel overwhelming, but with a clear understanding of your needs and the products available, you can make an informed decision that saves you time, effort, and money. After years of experimenting with various formulations and application methods, I’ve distilled my knowledge into these practical tips to help you select the best solution for your unique challenge.
Understanding Your Vegetation and Terrain
Before you even think about buying a product, you need to deeply understand your enemy. Are you battling sprawling vines like kudzu and poison ivy, aggressive woody saplings, thorny brambles, or persistent broadleaf weeds? Is the target vegetation growing in a pristine pasture, a dense forest edge, a gravel driveway, or alongside a fence where desirable plants might be nearby?
* Target Specificity: Some herbicides are non-selective, meaning they will kill anything green they touch. Others are selective, designed to target broadleaf weeds and brush while leaving desirable grasses unharmed. Knowing this is crucial, especially if you’re working in a pasture or a lawn where grass preservation is a priority.
* Density and Type: A few scattered weeds require a different approach than an acre of dense, mature brush. Woody plants with thick bark or deep root systems need products specifically designed to penetrate and translocate throughout the entire plant for a complete kill.
* Area Size: Are you spot-treating a small patch or clearing a vast expanse? This will influence whether you need a ready-to-use spray for convenience or a more economical concentrate that you mix yourself for larger applications.
Concentrate vs. Ready-to-Use: Convenience vs. Cost
This is a fundamental choice that impacts both your application process and your wallet, and I’ve found myself reaching for both types depending on the project.
* Concentrates: These are powerful, cost-effective solutions for larger areas. They require you to accurately measure and mix them with water according to the label’s instructions, typically using a tank sprayer. While this adds a step, it offers significant savings per gallon of applied solution and allows for customized mixing ratios for tougher weeds. For extensive brush clearing or ongoing maintenance of large properties, concentrates are almost always the more economical choice in the long run.
* Ready-to-Use Sprays: As the name suggests, these come pre-mixed and ready to apply. They are incredibly convenient for small jobs, spot treatments, or when you need quick, precise application without the hassle of measuring and mixing. While more expensive per unit of active ingredient, their ease of use makes them invaluable for targeted strikes or for those who prioritize maximum convenience. I often keep a ready-to-use spray on hand for those unexpected pop-up weeds or a small patch of poison ivy along a trail.
Active Ingredients and Their Power
The “magic” in these products lies in their active ingredients, and understanding what they do will empower your decision-making. From my testing, I’ve become quite familiar with the primary compounds in these Tractor Supply favorites.
* Triclopyr (e.g., Remedy, BioAdvanced, CROSSBOW32): This is a standout active ingredient for controlling woody plants, vines, and broadleaf weeds. It acts as a synthetic plant hormone (auxin), causing uncontrolled growth that leads to the plant’s demise. I’ve seen it absolutely devastate blackberry and multiflora rose, ensuring a thorough root kill. It’s often selective for grasses, making it ideal for pasture applications.
* 2,4-D (e.g., Southern Ag CROSSBOW32): Another powerhouse broadleaf herbicide, 2,4-D is excellent at controlling a wide range of annual and perennial broadleaf weeds. When combined with triclopyr, as in CROSSBOW32, it creates a formidable one-two punch that tackles an incredibly diverse array of vegetation. It also works by disrupting normal plant growth processes, leading to the weed’s collapse.
* Combined Formulations: Products like Southern Ag CROSSBOW32 leverage the synergy of multiple active ingredients (2,4-D and Triclopyr) to achieve a broader spectrum of control and often faster, more comprehensive results. This combination is particularly effective against tough, mature brush. Understanding these active ingredients helps you anticipate how a product will perform on your specific weed challenge.
Safety and Application Best Practices
Working with herbicides demands respect and adherence to safety protocols. Your personal safety and the well-being of your environment are paramount.
* Personal Protective Equipment (PPE): Always wear long sleeves, long pants, chemical-resistant gloves, eye protection, and closed-toe shoes. For prolonged spraying or when dealing with highly volatile products, a respirator might be advisable. Your safety is non-negotiable and always listed clearly on the product label.
* Read the Label Thoroughly: This is not just a suggestion; it’s critical. The label contains all the necessary information regarding mixing ratios, application methods, safety precautions, environmental hazards, and target weeds. Deviating from the label can lead to ineffective results, damage to desirable plants, or environmental harm.
* Weather Conditions: Apply on calm days to prevent drift onto desirable plants. Avoid applying before expected rain, unless the product explicitly states it’s rainproof within a few hours. High temperatures can also increase volatility, so cooler, non-windy mornings or evenings are often ideal for application.
* Targeted Application: Whenever possible, use a sprayer that allows for precise application to minimize overspray onto non-target plants. For extremely stubborn brush, cut stump treatments or basal bark applications (as some products allow) can be highly effective and reduce overall herbicide use, concentrating the power where it’s needed most.
These guidelines, honed through years of practical application, will equip you to confidently choose and use the best weed and brush killer from Tractor Supply for your specific property challenges, leading to a much clearer and more manageable landscape.
Frequently Asked Questions About Weed and Brush Killers
Q1: How do I know if I need a selective or non-selective weed killer?
A1: A selective killer targets specific types of plants, usually broadleaf weeds, while leaving desirable grasses unharmed. Choose this for pastures, lawns, or areas where you want to keep grass. A non-selective killer destroys almost any plant it contacts, ideal for clearing fence lines, gravel driveways, or areas where total vegetation removal is desired. Always identify your target weeds and surrounding plants first.
Q2: What is the best time of year to apply brush killer for optimal results?
A2: For most woody brush and perennial weeds, late summer to early fall is often ideal. During this period, plants are actively transporting nutrients to their roots for winter storage, effectively pulling the herbicide deep into the root system for a more complete kill. Spring applications can also be effective when plants are actively growing, but avoid applying to stressed or dormant plants.
Q3: How long does it take to see results after applying these products?
A3: Visible results typically begin within 1 to 2 weeks for most products, with some showing initial wilting in a few days. Complete desiccation and death of the plant can take anywhere from 2 to 6 weeks, depending on the weed type, its maturity, and environmental conditions. Patience is key, as the systemic action takes time to reach and kill the entire root system.
Q4: Can these brush killers harm my pets or livestock?
A4: Most brush killers are generally safe for pets and livestock once they have dried completely on the foliage, but always check the product label for specific grazing restrictions and re-entry intervals. Remedy Specialty Herbicide, for example, explicitly states it’s safe around children and pets when applied according to the label. Always keep animals away from treated areas until the product has dried.
Q5: What kind of sprayer should I use for concentrates?
A5: For concentrates, a pump sprayer or backpack sprayer is essential. For smaller areas, a hand-held pump sprayer works well. For larger areas or extensive brush, a backpack sprayer or even a tow-behind sprayer (for ATVs/tractors) will be more efficient. Ensure your sprayer is clean, calibrated, and produces a consistent spray pattern for even coverage.
Q6: What precautions should I take to prevent drift onto desirable plants?
A6: To minimize drift, always apply on a calm day with little to no wind. Use a coarse spray nozzle that produces larger droplets, which are less prone to drifting than fine mists. Maintain a low spray height, and consider using a shield or cardboard to block spray from nearby desirable vegetation. Always respect buffer zones near sensitive plants.
Q7: Can I apply these products when it’s raining or just before rain?
A7: Most of these products, including BioAdvanced Brush Killer Plus, become rainproof within 4 hours of application. This means if it rains after this period, the product should still be effective. However, applying during active rain or immediately before a heavy downpour is not recommended, as it can wash the herbicide off the leaves before it’s absorbed, reducing efficacy.
Q8: How long should I wait before replanting in an area treated with brush killer?
A8: The waiting period varies significantly by product and active ingredient. Some products may allow replanting after a few weeks, while others might require several months, especially for sensitive plants. Always consult the specific product label for replanting restrictions. This information is critical to avoid damaging new plants or crops and ensure successful replanting.
Q9: Do I need to cut down the brush before applying the killer?
A9: For most foliar applications, it’s generally not necessary to cut down the brush beforehand. The herbicide needs healthy foliage to absorb the product effectively. However, for very dense or tall brush, cutting it back slightly can improve spray penetration and coverage. For larger woody stems, a “cut stump” or “basal bark” treatment (if the product label allows) can be highly effective.
Q10: What’s the shelf life of these concentrated products?
A10: When stored properly in their original, tightly sealed containers in a cool, dry place away from direct sunlight and freezing temperatures, most concentrated herbicides have a shelf life of 3-5 years, sometimes even longer. Always check the manufacturing date or any expiration dates on the label. If a product separates or changes consistency, it might be expired and less effective.
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