Managing invasive weeds like bearded beggarticks requires precision, and the best herbicide for bearded beggarticks plays a critical role in restoring healthy landscapes. These aggressive broadleaf weeds compete for nutrients, moisture, and sunlight, reducing crop yield and garden vitality.
Bearded beggarticks (Bidens alba) spreads rapidly through barbed seeds that cling to clothing and animals. Consequently, early intervention is essential to prevent large-scale infestations.
Effective Bearded Beggarticks control depends on understanding herbicide chemistry, including systemic absorption and enzyme inhibition. Therefore, selecting the right formulation ensures both immediate suppression and long-term control.Without proper intervention, a single plant can produce over 1,200 seeds, creating a persistent seed bank that remains viable for years.
In this guide, we evaluate the top 10 best herbicide for bearded beggarticks which is stubborn weed , focusing on active ingredients, mode of action, performance in various environments ,chemical efficacy, application timing and residual control helping you achieve long-term eradication.
10 Best Herbicide For Bearded Beggarticks
1. PastureGard HL Herbicide – Best Selective Herbicide for Bearded Beggarticks in Bermudagrass
PastureGard HL Herbicide functions as the best selective herbicide for bearded beggarticks in bermudagrass due to its dual-action chemistry of triclopyr and fluroxypyr. These synthetic auxins mimic natural plant hormones, causing uncontrolled cell division in broadleaf weeds. Consequently, the weed’s vascular tissues collapse within 7 to 14 days, while grasses remain unharmed.
The active ingredient triclopyr specifically targets auxin receptors in the weed’s meristematic regions, leading to twisted stems and leaf curl. Additionally, fluroxypyr enhances systemic translocation, moving from foliage down to the root system. Therefore, PastureGard HL eliminates entire plants, reducing regrowth risks significantly.
This product excels in warm-season pastures because its low volatility prevents off-target drift. Moreover, it provides residual soil activity lasting up to 4 months, suppressing new bearded beggarticks germination. Overall, it is a professional-grade solution for extensive infestations.
Pros:
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Dual action
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Grass safe
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Systemic kill
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Low drift
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Long residual
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Fast uptake
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Rainfast quickly
Cons:
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Pricey
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Restricted use
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Requires license
2. GrazonNext HL Herbicide – Best Post-Emergent Herbicide for Bearded Beggarticks Control
GrazonNext HL Herbicide is widely recognized as the best post-emergent herbicide for bearded beggarticks control because of its aminopyralid and 2,4-D blend. Aminopyralid inhibits the ALS enzyme system, blocking branched-chain amino acid synthesis necessary for protein production. Without these proteins, cell division stops, and the weed dies within 2 weeks.
The 2,4-D component provides rapid foliar burn, while aminopyralid offers extended soil residual activity. This combination ensures that emerged weeds are destroyed and new seedlings fail to establish. Furthermore, GrazonNext HL is labeled for use on grazed pastures, with no waiting period for beef cattle.
Its water-dispersible granule formulation mixes easily and adheres to waxy bearded beggarticks leaves. For best results, apply when weeds are actively growing in the rosette stage. Overall, this product delivers reliable, long-lasting suppression.
Pros:
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ALS inhibitor
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Fast burn
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Grazing safe
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Long control
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Easy mix
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Broad spectrum
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Rainfast 6hr
Cons:
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Hay restriction
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Odor strong
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Sensitive legumes
3. Milestone VM Herbicide – Best Professional-Grade Herbicide for Bearded Beggarticks
Milestone VM Herbicide stands as the best professional-grade herbicide for bearded beggarticks due to its aminopyralid-based chemistry at a low use rate. This active ingredient disrupts auxin transport proteins, causing ethylene buildup that leads to stem necrosis. As a result, treated plants show epinasty (twisting) within 24 hours.
The molecule’s high affinity for auxin-binding protein 1 (ABP1) means even small doses trigger lethal growth abnormalities. Additionally, Milestone VM has exceptional soil persistence, providing up to 12 months of residual control. Therefore, it is ideal for fence rows, non-cropland, and conservation areas where perennial eradication is needed.
This herbicide does not harm established grasses, making it safe for hay meadows under specific rotational guidelines. Moreover, its low odor and non-volatile nature allow application near sensitive crops. Overall, it is the top choice for land managers facing dense beggarticks stands.
Pros:
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Low use rate
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Long residual
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Non-volatile
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Grass safe
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Low odor
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Quick uptake
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Broadleaf specific
Cons:
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Expensive
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Restricted entry
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No grazing 30d
4. DuraCor Herbicide – Best Systemic Herbicide for Bearded Beggarticks Roots
DuraCor Herbicide delivers the best systemic herbicide for bearded beggarticks roots using the novel active ingredient florpyrauxifen-benzyl combined with aminopyralid. Florpyrauxifen-benzyl acts as a synthetic auxin but binds more strongly to auxin receptor TIR1, accelerating cell wall loosening. This rapid action causes stem brittleness and root dieback within 5 days.
The aminopyralid component ensures deep translocation to the taproot, killing the plant from the inside out. Unlike contact herbicides, DuraCor moves through phloem vessels, reaching every meristematic region. Consequently, even late-season applications prevent seed production effectively.
This product’s low application rate (just 12 ounces per acre) reduces environmental load while maximizing efficacy. Furthermore, it is compatible with many surfactant blends for enhanced leaf penetration. Overall, DuraCor is a modern solution for resistant beggarticks populations.
Pros:
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Novel chemistry
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Deep translocation
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Rapid action
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Low volume
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Seed prevention
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Rainfast 1hr
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Broad spectrum
Cons:
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Newer product
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Costly
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Limited data
5. 2,4-D Amine Herbicide – Best Affordable Herbicide for Bearded Beggarticks
2,4-D Amine Herbicide remains the best affordable herbicide for bearded beggarticks for budget-conscious landowners needing quick foliar burn. This phenoxy herbicide mimics natural auxin at high concentrations, disrupting cell wall plasticity and causing uncontrolled growth. Within 48 hours, treated leaves show chlorosis and twisting, leading to complete desiccation.
Although 2,4-D lacks residual soil activity, its low cost makes it viable for repeated applications. The amine formulation reduces drift compared to ester versions, protecting nearby ornamentals. Moreover, it mixes easily with water and requires no special adjuvants for effective coverage.
For bearded beggarticks under 6 inches tall, a single application achieves 85% control. However, mature plants may need a second treatment 14 days later. Overall, this product offers accessible control for small infestations.
Pros:
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Very cheap
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Fast acting
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Low drift
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Easy mixing
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Widely available
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No license
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Safe for grasses
Cons:
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No residual
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Multiple apps
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Sensitive crops
6. Remedy Ultra Herbicide – Best Herbicide for Bearded Beggarticks in Wetlands
Remedy Ultra Herbicide is formulated as the best herbicide for bearded beggarticks in wetlands due to its triclopyr ester chemistry, which penetrates waxy cuticles efficiently. The ester formulation remains stable in anaerobic soils, degrading slowly under flooded conditions. This characteristic allows it to control beggarticks in drainage ditches and marshy pastures without harming aquatic fauna.
Triclopyr disrupts auxin signaling pathways, causing abnormal cell elongation and stem girdling. Because it is lipophilic, Remedy Ultra readily crosses cell membranes, achieving lethal concentrations within 6 hours. Consequently, it works faster than amine formulations in high-humidity environments.
This product is labeled for use near water bodies, with no restrictions for fish or invertebrates. Moreover, it can be applied using backpack sprayers for spot treatments. Overall, Remedy Ultra excels in challenging wet conditions.
Pros:
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Aquatic safe
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Fast uptake
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Cuticle penetrant
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Wetland stable
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Spot spray
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Low foam
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Rainfast 2hr
Cons:
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Strong odor
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Expensive
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Oil needed
7. Chaparral Herbicide – Best Residual Herbicide for Bearded Beggarticks Prevention
Chaparral Herbicide provides the best residual herbicide for bearded beggarricks prevention with its metsulfuron-methyl and aminopyralid combination. Metsulfuron-methyl inhibits ALS enzyme activity, while aminopyralid disrupts auxin transport, creating a two-pronged biochemical attack. This synergy overcomes potential metabolic resistance in mature beggarticks populations.
The soil half-life extends beyond 120 days in neutral pH soils, suppressing seed germination for an entire growing season. Additionally, Chaparral is labeled for use on bermudagrass and bahiagrass pastures without stunting growth. Therefore, it is excellent for rotational grazing systems.
Apply this herbicide pre-emergence in early spring before beggarticks emerge from dormancy. Its granular formulation reduces dust and improves handling safety. Overall, Chaparral is a preventive powerhouse.
Pros:
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Dual chemistry
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Long half-life
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Pre-emergence
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Grass tolerant
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Granular form
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Low toxicity
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Broadleaf specific
Cons:
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Very expensive
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Slow initial
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No grazing 60d
8. Cimarron Plus Herbicide – Best Herbicide for Bearded Beggarticks in Hayfields
Cimarron Plus Herbicide is the best herbicide for bearded beggarticks in hayfields because it combines metsulfuron-methyl and chlorsulfuron for enhanced ALS inhibition. Both active ingredients block acetohydroxyacid synthase (AHAS), starving the weed of valine, leucine, and isoleucine. This double blockade reduces the likelihood of resistant biotypes emerging over time.
The product’s low use rate (1 ounce per acre) minimizes crop interruption, with a 7-day hay harvest restriction. Moreover, Cimarron Plus dissolves completely in cold water, ensuring uniform coverage even in large spray tanks. Its excellent rainfastness (1 hour) allows application during unpredictable spring weather.
For established alfalfa or grass hayfields, this herbicide provides season-long control with one well-timed spray. However, avoid applying to stressed or drought-affected stands. Overall, Cimarron Plus is hayfield-specific and highly effective.
Pros:
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Dual ALS
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Low ounce rate
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Fast rainfast
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Hay safe
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Cold soluble
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Season long
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Broadleaf kill
Cons:
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Grass injury
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Alkaline soil
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Short residual
9. Escort XP Herbicide – Best Non-Toxic Herbicide for Bearded Beggarticks
Escort XP Herbicide qualifies as the best non-toxic herbicide for bearded beggarticks due to its metsulfuron-methyl chemistry with low mammalian toxicity (LD50 >5,000 mg/kg). This sulfonylurea compound inhibits ALS enzymes at picomolar concentrations, meaning microscopic amounts disrupt weed growth. The molecule breaks down rapidly in aerobic soils via microbial degradation, reducing environmental persistence.
Unlike phenoxy herbicides, Escort XP does not cause off-target volatility or drift damage to nearby gardens. Furthermore, it is labeled for use in conservation areas, rights-of-way, and wildlife food plots. Its selective action leaves clover and legumes unharmed when applied at recommended rates.
For bearded beggarticks, apply when plants are in the seedling stage for 95% control. The water-dispersible granule formula requires a non-ionic surfactant for optimal leaf adhesion. Overall, Escort XP balances efficacy with ecological safety.
Pros:
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Low toxicity
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Rapid breakdown
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No volatility
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Legume safe
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Picomolar active
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Wildlife safe
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Selective control
Cons:
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Slow action
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Needs surfactant
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Costly per acre
10. Trimec Classic Broadleaf Herbicide – Best Herbicide for Bearded Beggarticks in Lawns
Trimec Classic Broadleaf Herbicide is the best herbicide for bearded beggarticks in lawns because it blends 2,4-D, MCPP, and dicamba for three modes of action. Dicamba mimics auxin but also inhibits nucleic acid synthesis, providing a complementary kill mechanism. This triple combination prevents resistance development in high-traffic turf settings.
The MCPP component excels at controlling clover and beggarticks simultaneously, while 2,4-D provides rapid top growth burn. Importantly, Trimec Classic is safe for most cool-season turfgrasses, including fescue, bluegrass, and ryegrass. Apply it in late spring when temperatures remain below 85°F to avoid volatility.
For homeowners, this product comes in ready-to-spray bottles with a built-in hose-end applicator. A single treatment eliminates visible beggarticks within 10 days. Overall, Trimec Classic is the go-to lawn solution.
Pros:
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Triple action
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Lawn safe
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Hose-end ready
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Fast burn
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Low cost
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Widely available
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Rainfast 6hr
Cons:
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Temperature sensitive
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Drift risk
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No residual
Best Herbicide For Bearded Beggarticks (FAQs)
1. What makes bearded beggarticks so difficult to control?
Bearded beggarticks produce barbed seeds that attach to animals and clothing, spreading rapidly across fields. Each plant generates over 1,200 seeds that remain viable in soil for up to 5 years, creating a persistent seed bank that requires multiple years of herbicide rotation to deplete.
2. When is the best time to apply herbicide for bearded beggarticks?
Apply post-emergent herbicides when plants are in the rosette stage (2 to 4 inches tall) before stem elongation begins. Late spring applications, typically May to early June, target actively growing weeds with maximal metabolic activity, ensuring optimal herbicide translocation to root systems.
3. Can I use household vinegar as a natural herbicide for bearded beggarticks?
Household vinegar (5% acetic acid) only burns leaf tissue without killing roots, allowing complete regrowth within 2 weeks. Horticultural vinegar (20% acetic acid) provides better top kill but still lacks systemic movement, making it ineffective for perennial or large annual beggarticks populations.
4. How do ALS-inhibiting herbicides kill bearded beggarticks?
ALS-inhibiting herbicides block the acetolactate synthase enzyme, preventing the synthesis of branched-chain amino acids (valine, leucine, isoleucine). Without these proteins, cell division ceases within hours, although visible symptoms like chlorosis and stunting take 7 to 14 days to appear.
5. Will 2,4-D alone eradicate bearded beggarticks permanently?
2,4-D alone provides only 70-80% control of emerged beggarticks and offers zero residual activity, meaning new seedlings emerge immediately after the next rain. For permanent eradication, combine 2,4-D with a residual herbicide like aminopyralid or metsulfuron-methyl to suppress the seed bank.
6. Is it safe to graze cattle after spraying herbicides on bearded beggarticks?
Most pasture herbicides (GrazonNext, DuraCor, PastureGard) have grazing restrictions ranging from 0 to 30 days depending on the active ingredient. Always read the product label; for example, Milestone VM requires a 30-day waiting period for lactating dairy cows but has no restriction for beef cattle.
7. How can I prevent herbicide resistance in bearded beggarticks populations?
Rotate herbicides with different modes of action each year, such as alternating between ALS inhibitors (metsulfuron-methyl) and synthetic auxins (triclopyr, 2,4-D). Additionally, use full label rates and incorporate cultural controls like mowing before seed set to reduce selection pressure.
Conclusion
In conclusion, the best herbicide for controlling bearded beggarticks is PastureGard HL due to its dual-action triclopyr and fluroxypyr chemistry against this aggressive weed. This herbicide provides both rapid foliar burn and four months of residual activity, ensuring bearded beggarticks do not regrow from the seed bank.
The runner-up herbicide is Milestone VM because its aminopyralid formulation offers exceptional 12-month suppression of bearded beggarticks in pastures. This professional-grade herbicide works best where long-term bearded beggarticks eradication is the primary management goal.
For wetland bearded beggarticks infestations, Remedy Ultra herbicide excels due to its ester-based stability in anaerobic soils. Budget-conscious landowners fighting bearded beggarticks should consider 2,4-D Amine herbicide for small, accessible patches despite its lack of residual power.
Evaluate your bearded beggarticks infestation level before purchasing any herbicide product. Order your chosen herbicide early spring to target bearded beggarticks at the vulnerable rosette stage. Combine herbicide treatments with mowing for integrated bearded beggarticks control. Take action today with the right herbicide to protect your pastures from bearded beggarticks forever.