What Is Yard Weed Killer?

Switchgrass (Panicum virgatum) has become a high-value crop in recent years due to its role in bioenergy production, forage systems, and conservation planting. However, successful stand establishment and long-term productivity heavily rely on early and effective weed management. Annual grasses like crabgrass, foxtails, and barnyardgrass can severely outcompete young switchgrass seedlings, limiting biomass yields.
Quinclorac, a selective post-emergent herbicide, is widely used in turf and rice systems for its ability to control problematic grassy weeds. Increasingly, it is being evaluated and applied as a targeted herbicide in switchgrass fields to suppress weed pressure during the early growth stages.

What Is Quinclorac and How Does It Work?
Quinclorac is a synthetic auxin herbicide (HRAC Group 4) that mimics plant hormones to disrupt cell elongation and growth. Its mode of action leads to abnormal growth, tissue distortion, and ultimately weed death, particularly in emerged annual grasses and some broadleaf weeds.
Key Features:


Chemical name: 3,7-Dichloro-8-quinolinecarboxylic acid


Formulations: 75% WDG, 20% SC, 25% WP


Weed targets: Crabgrass (Digitaria spp.), foxtail (Setaria spp.), barnyardgrass (Echinochloa spp.), clover, bindweed


Residual activity: Up to several weeks in soil, offering extended suppression


Rainfast: 6–8 hours after application



Is Quinclorac Safe for Switchgrass Fields?
Yes—Quinclorac can be used in switchgrass systems under certain conditions, especially as a post-emergent herbicide targeting grassy weeds without harming established switchgrass stands.
Crop Selectivity:


Switchgrass shows moderate to good tolerance to Quinclorac once it reaches 3+ tillers.


It is not recommended during seedling emergence or early establishment (within 2–4 weeks after seeding).


Registered Uses:


In some regions, Quinclorac is used off-label or under research permit in native grassland restoration and switchgrass biofuel programs.


Always check with local extension offices and label guidance before field application.



When and How to Apply Quinclorac in Switchgrass Fields
Best Timing:


Post-emergent: Apply when switchgrass is established and weeds are at 2–4 leaf stage.


Avoid applications during early emergence or drought stress to minimize crop injury.


Recommended Application Rates:




Formulation
Rate per Acre
Carrier Volume




75% WDG
0.67–1.0 lbs
15–40 GPA (ground)


20% SC
1.5–2.0 pints
10–40 GPA






Always add a methylated seed oil (MSO) or nonionic surfactant (NIS) for improved weed uptake.


Quinclorac is often tank-mixed with broadleaf herbicides (e.g., 2,4-D) for broader spectrum control.



Target Weeds Controlled by Quinclorac in Switchgrass Plantings




Weed Type
Examples
Control Level




Annual grasses
Crabgrass, foxtails, barnyardgrass
Excellent (post-emergent)


Broadleaf weeds
Clover, speedwell, black medic
Partial–Moderate


Perennial grasses
Johnsongrass, brome
Poor–Not labeled





Note: Quinclorac is most effective when used in conjunction with pre-emergent programs and cultural controls (e.g., mowing, timely planting).


Quinclorac vs. Other Herbicides in Switchgrass Systems




Herbicide
Mode of Action
Main Use
Crop Safety




Quinclorac
Synthetic auxin
Post-emergent grass control
Good in established stands


Pendimethalin
Cell division inhibitor
Pre-emergent annual grass
Safe pre-plant or pre-emergence


2,4-D
Synthetic auxin
Broadleaf control
Safe post-emergent in mature stands


Imazapic
ALS inhibitor
Broad-spectrum; some grasses
Selective; may suppress switchgrass at high rates





Practical Use Tips for Growers


Start clean: Control weeds pre-plant with glyphosate or tillage.


Monitor weed stage: Quinclorac is most effective on young, actively growing weeds.


Tank mix wisely: Combining with IGRs or compatible broadleaf herbicides improves spectrum.


Avoid replanting sensitive crops (e.g., legumes) for up to 12 months due to soil residue.


Follow re-entry and harvest intervals as indicated on the product label.



Frequently Asked Questions (FAQ)
Q1: Can I use Quinclorac on new switchgrass seedlings?
A: No. Wait until switchgrass is well established (typically 4–6 weeks post-planting) before applying.
Q2: Will Quinclorac control perennial grasses?
A: No. It is effective on annual grassy weeds, not perennials like johnsongrass or brome.
Q3: Can I tank mix Quinclorac with 2,4-D?
A: Yes, in many cases, this is recommended to broaden control spectrum. Always conduct a jar test and read both labels for compatibility.
Q4: Is Quinclorac safe near waterways or sensitive plants?
A: Like most herbicides, avoid drift to non-target species and buffer zones near aquatic areas.

Conclusion: Quinclorac is a Strategic Tool for Grass Weed Control in Switchgrass
When used appropriately, Quinclorac offers a targeted, post-emergent solution for controlling crabgrass and other invasive annual grasses in switchgrass production systems. While it is not a silver bullet, it can protect biomass yield, preserve soil cover, and support stand longevity when integrated into a broader weed management program.

Professional-Grade Quinclorac Solutions for Bulk Buyers
As a leading supplier of post-emergent herbicides, we provide:


Quinclorac 75% WDG / 20% SC / 25% WP


Custom packaging, labeling, and branding services


Regulatory documentation: COA, MSDS, SDS, and export support


Free samples available for product evaluation


We specialize in bulk agrochemical supply for biofuel programs, commercial growers, and distributors. Let us support your switchgrass weed control programs with reliable, field-tested solutions.
Contact us now to request a quote or sample pack.

Understanding the Threat of Fireweed
If you manage pastures, livestock, or rural properties, fireweed presents a serious threat that you cannot afford to overlook. This invasive, fast-spreading plant not only dominates fields but also poses severe toxicity risks to cattle and sheep. Early identification and prompt control are critical to protect your land, your livestock, and your bottom line.
This comprehensive guide will help you understand what fireweed is, why it is dangerous, how it spreads, and the most effective methods for controlling it with targeted herbicide applications.
What Is Fireweed?
Fireweed (Senecio madagascariensis) is a daisy-like herbaceous plant native to southern Africa. It was first recorded in Australia's Hunter Valley in 1918 and has since spread extensively along the eastern coast, from central Queensland to northern Victoria.
Fireweed is easily recognizable by its:


Bright yellow flowers (8–14 petals)


Serrated dark green leaves with a pale green central vein


Growth height ranging from 20 cm to 50 cm depending on environmental conditions


Cylindrical seeds covered with fine hairs, aiding in wind dispersal


Despite its seemingly harmless appearance, fireweed is highly toxic to livestock and can decimate pastures if left unchecked.

Why Is Fireweed a Problem?
Fireweed thrives in overgrazed or neglected pastures, rapidly outcompeting desirable forage species. It can produce millions of seeds per hectare, enabling it to colonize vast areas swiftly. Consumption by livestock leads to:


Liver damage


Reduced weight gain


Decreased milk production


Potential fatalities


Additionally, contamination of meat and milk products due to fireweed ingestion can cause severe economic losses.
How Fireweed Grows and Spreads
Fireweed is an annual plant, completing its life cycle within a single growing season. It germinates in warm, moist conditions—typically between March and June. Flowering occurs quickly, often within 6–10 weeks, making early intervention essential.
Seeds are primarily dispersed by:


Wind


Livestock movement


Wildlife


Human activities (via contaminated hay, mulch, and pasture seed)


Best Practices for Fireweed Control
1. Early Detection and Rapid Response
Begin control efforts as soon as fireweed seedlings are identified. A dense, healthy pasture during autumn and winter helps suppress fireweed germination naturally.
2. Herbicide Application
Targeted herbicide use is the most effective method for controlling fireweed, particularly when plants are young and before seed production begins. Proper herbicide selection based on plant stage is crucial for success.
3. Integrated Management
Combine herbicide treatments with mechanical methods such as:


Boom spraying for large areas


Spot spraying for localized infestations


Manual removal and disposal of flowering plants


Consistent monitoring and follow-up treatments are necessary to prevent regrowth and seedbank replenishment.
Recommended Herbicides for Fireweed Control
The table below outlines the most effective active ingredients for managing fireweed across different growth stages:



Active Ingredient
Best Application Stage
Key Features




Bromoxynil
Seedling Stage
Selective broadleaf herbicide; ideal for use in pastures containing clovers and lucerne; minimal impact on grasses


Bromoxynil + Diflufenican
Seedling to Four-Leaf Stage
Rapid action; broad-spectrum control of emerging broadleaf weeds; suitable for cereals, vineyards, and improved pastures


Picloram + Triclopyr + Aminopyralid
Mature Plants, Flowering Stage
Comprehensive foliar and residual control; effective against established and flowering fireweed; safe for pasture grasses



Important:Always follow the product label instructions carefully, including application timing, rates, and safety guidelines to ensure maximum efficacy and environmental stewardship.
Fireweed Control FAQs
What is the best time to apply herbicides for fireweed?
The most effective time to apply herbicides is during autumn (March to May) when fireweed seedlings are actively growing. Early intervention prevents flowering and seed production.
Can fireweed be controlled after it starts flowering?
Yes, but higher herbicide rates are usually required. Applications during the early flowering stage can still provide effective control, though early treatment remains preferable.
Will herbicide treatment affect my pasture grasses?
Most herbicides recommended for fireweed control, such as bromoxynil-based formulations, are selective and will not harm established grasses when used correctly. Always verify the label compatibility with your pasture species.
How many herbicide treatments are needed to eradicate fireweed?
A single application may not be sufficient, especially in heavily infested areas. Follow-up treatments and integrated pasture management practices are necessary for long-term control.
Are there non-chemical options to manage fireweed?
Maintaining a dense pasture through proper grazing management and pasture improvement can suppress fireweed naturally. However, for active infestations, herbicides provide the most reliable results.
Conclusion
Managing fireweed effectively requires a proactive, informed approach. Early identification, timely herbicide application, and strategic pasture management are your best defenses against this aggressive weed. By choosing the right active ingredients and maintaining vigilant pasture care, you can protect your land, livestock, and productivity.
For expert advice or assistance selecting the best fireweed control solutions for your property, feel free to contact our specialist team. We are here to support your success.

How to Get Rid of Invasive Broadleaf Weeds Without Damaging Pastures
Weeds are more than just an eyesore—they represent a growing economic and ecological burden for landowners, especially in grazing and mixed farming systems. Among the most persistent and damaging are broadleaf weeds, a category of fast-growing, deep-rooted invaders that compete aggressively with desirable pasture species. If left unmanaged, they quickly spread across paddocks, reduce carrying capacity, and drive up the cost of land maintenance.
For livestock producers, the impact is even more severe. Broadleaf weeds can smother pasture in early spring, limit access to feed, and interfere with movement and grazing behavior. In severe cases, some species are toxic to livestock or contaminate hay and silage. As these weeds mature, they often become harder to kill, requiring more labor-intensive methods or repeated treatment.
The most effective way to stop this cycle is by combining early detection with the right herbicide strategy. At POMAIS, we help farmers, land managers, and agrochemical distributors select targeted broadleaf weed control solutions—backed by proven actives, multiple formulation options, and support for custom packaging and documentation. Whether you're managing 50 acres or 5,000, the earlier you act, the easier and more cost-effective control becomes.
What Are Broadleaf Weeds and Why Are They Hard to Control?
Broadleaf weeds are a diverse group of non-grass plants that grow in pastures, cropland, and disturbed areas. Unlike grasses, these weeds typically have wide leaves, branching stems, and deep root systems that allow them to survive harsh conditions and outcompete desired species. Common examples include thistles, docks, ragwort, chickweed, and capeweed—many of which are prolific seed producers and highly adaptable to different soil types.
What makes broadleaf weeds especially difficult to manage is their ability to regenerate from root fragments, produce thousands of seeds per plant, and grow rapidly during periods of seasonal rainfall. Some species can even remain dormant in the seedbank for years, waiting for the right conditions to emerge. Once established, they are resistant to mowing, grazing, and general cultivation, often requiring repeated or systemic intervention to achieve long-term suppression.
Manual removal may work for small infestations, but is impractical at scale. Slashing or grazing may reduce above-ground growth temporarily, but rarely eliminate the plant. That’s why, in agricultural settings, the use of selective herbicides becomes essential—allowing targeted control of broadleaf species while preserving productive pasture and crop species.
In the next section, we’ll look at the risks of ignoring broadleaf weeds, and how delayed action can significantly raise costs and reduce land productivity.
The Cost of Inaction: What Happens If You Don’t Control Them
Delaying action on broadleaf weeds might seem harmless in the short term—but it often results in higher long-term costs, reduced pasture value, and irreversible degradation of your land. Many broadleaf species grow aggressively during early spring, forming dense mats or rosettes that crowd out young pasture seedlings and create a competitive barrier for sunlight, moisture, and nutrients. If left untreated, they quickly dominate, leaving little room for productive forage species to recover.
In livestock systems, unchecked weeds reduce carrying capacity and limit access to grazing zones. Species like thistles or dock may even cause direct harm—either by injuring livestock, contaminating wool and hay, or introducing toxins when consumed in bulk. Over time, paddock management becomes more difficult as weeds interfere with fencing, rotation, and water point access.
There is also the financial impact to consider:


More herbicide is needed to control mature infestations


Mechanical removal may be required if chemical options are no longer sufficient


Pasture recovery efforts—like reseeding—become more expensive


Weed seed spread to neighboring properties can result in reputational or legal liability


In many cases, the economic losses from just one season of uncontrolled spread far outweigh the investment in early-stage herbicide treatment. That’s why experienced land managers and distributors turn to selective, systemic herbicides that stop weeds at the root—before they escalate into a costly problem.
In the next section, we’ll explore how to identify the most common broadleaf weeds on your property—so you can take action early and apply the right product at the right time.
How to Identify the Major Broadleaf Weeds on Your Property
Effective weed control begins with proper identification. While all broadleaf weeds share certain traits—such as wide, flat leaves and non-grass growth habits—each species behaves differently in terms of spread, resilience, and herbicide sensitivity. Recognizing which species dominate your pastures or cropping areas will help you select the most effective herbicide and application strategy.
Here are some of the most commonly encountered broadleaf weeds in pasture and non-crop zones:





Weed Name
Visual Characteristics
Growth Habit
Impact




Scotch Thistle
Large, spiny rosettes; woolly leaves; purple flower heads
Biennial, erect, up to 2 m tall
Smothers pastures, restricts livestock movement


Capeweed
Low-growing rosettes with yellow daisy flowers
Annual; spring-dominant
Outcompetes young pasture; seed contamination


Ragwort
Serrated leaves, yellow cluster flowers
Biennial or perennial
Toxic to livestock; invasive in cool zones


Dock (Curly or Broadleaf)
Broad leaves with wavy or smooth margins
Perennial with deep taproots
Resists slashing; regrows from root fragments


Spear Thistle
Upright with branched stems; purple flower at the top
Biennial
Spiny stems deter grazing; prolific seed producer


Chickweed
Small leaves, white flowers; sprawling ground cover
Annual; thrives in damp conditions
Competes with pasture during autumn/winter




Some weeds are easily confused during early growth stages—particularly those with rosette formations. That’s why early-stage field scouting and photographic comparisons are essential, especially during early spring or post-rainfall emergence.



If you're unsure which species are affecting your paddocks, we recommend consulting with your agronomist or requesting identification support from our team. At POMAIS, we provide technical assistance and herbicide pairing recommendations based on specific weed species and pasture systems.
In the next section, we’ll cover why herbicides remain the most effective long-term solution—and how to choose the right mode of action for maximum control with minimal pasture damage.
The Best Way to Eliminate Broadleaf Weeds: Herbicide Application
While mowing, grazing, and cultivation may offer short-term suppression, herbicide application remains the most reliable and scalable method for controlling broadleaf weeds—especially when infestations are widespread or deeply rooted. Modern herbicide technology allows you to target weeds at specific growth stages, with minimal impact on desirable pasture or crop species.
There are two key application strategies depending on weed development:
1. Post-Emergent Herbicide Treatment


Applied to actively growing weeds during vegetative or early flowering stages


Most effective when the weed is metabolically active (e.g., spring or after rainfall)


Systemic herbicides like MCPA, clopyralid, or dicamba move through the plant to kill roots and shoots


Best used for Scotch thistle, ragwort, docks, and chickweed


2. Pre-Emergent or Residual Control


Applied to soil before weed germination or during seedling emergence


Useful in rotation breaks or in paddocks with repeated infestations


Herbicides like prodiamine or metsulfuron-methyl provide lasting soil activity, preventing seedling establishment


Ideal for seed-dominant species like capeweed or variegated thistle


Application timing, weather conditions, and water volume also play a critical role. Herbicides should be applied on dry, wind-free days, with enough carrier volume to ensure full leaf coverage. Adding a penetrant or surfactant is essential for waxy or hairy-leaved species like docks or mature thistles.
At POMAIS, we support your weed control program with a wide range of selective herbicide formulations, all available in bulk, ready-to-label OEM formats, and tailored for use across pastures, paddocks, and non-crop areas.
In the next section, we’ll introduce the most effective active ingredients for broadleaf weed control—backed by field-proven results.
Recommended Active Ingredients for Broadleaf Weed Control
Not all herbicides are created equal. To achieve consistent and long-term suppression of broadleaf weeds, it’s critical to choose the right active ingredient based on your target species, application timing, and crop or pasture sensitivity. At POMAIS, we formulate and supply a broad range of high-performance herbicides that deliver fast knockdown, systemic action, or extended soil residual—depending on your needs.
Here are the most commonly used and effective active ingredients for broadleaf weed management:





Active Ingredient
Mode of Action
Best Target Weeds
Common Application Methods




MCPA
Selective, systemic growth regulator
Thistles, capeweed, chickweed
Post-emergent foliar spray


2,4-D (Ester or Amine)
Auxin mimic (hormonal disruptor)
Ragwort, spear thistle, broadleaf invaders
High-volume spray or boom spraying


Dicamba
Broad-spectrum auxin mimic
Docks, variegated thistle, hard-to-kill weeds
Spot spray, tank-mix with MCPA or 2,4-D


Fluroxypyr
Fast-acting growth inhibitor
Scotch thistle, dock, seedling weeds
Pasture-safe foliar treatment


Clopyralid
Systemic with soil persistence
Ragwort, capeweed, skeleton weed
Residual control; use with caution near legumes


Aminopyralid
Long-acting systemic control
Stubborn perennial weeds, mixed infestations
Combination with fluroxypyr or triclopyr


Metsulfuron-Methyl
ALS inhibitor, low-dose systemic
Mixed thistles, docks, rosette-forming weeds
Tank mix additive or broadcast spray


Glyphosate
Non-selective total vegetation control
Spot treatment on fence lines or boundaries
Hand spray or cut-stump method




Why Choose POMAIS Formulations?



We provide:


Single and combination formulations (e.g., MCPA + fluroxypyr or 2,4-D + dicamba)


Multiple dosage forms: SL, EC, WP, WG, GR for broadcast, boom, or manual application


OEM customization: Concentration, label, bottle type based on your market needs


Full export documentation: COA, MSDS, Registration Dossiers, and support for local compliance


Whether you’re targeting a selective pasture spray or looking for a broad-spectrum combination for tough weed pressure, POMAIS delivers consistent performance and global-standard manufacturing.
In the next section, we’ll explore how and when to apply herbicides to maximize effectiveness while minimizing risk to pastures and animals.
Timing & Technique: When and How to Apply Herbicides
Even the most effective herbicide can fail if applied at the wrong time or with poor technique. To achieve full-season control of broadleaf weeds—without compromising pasture health or wasting chemical—you need to understand how timing, coverage, and carrier volume work together to drive success.
Best Timing for Application


Early Spring (Pre-Flowering Stage): Ideal for thistles, ragwort, and capeweed. Weeds are actively growing and more susceptible to systemic herbicides.


Post-Harvest (Late Summer/Early Autumn): Useful for targeting regrowth or biennial rosettes before winter dormancy.


Pre-Emergence (Before Germination): Apply residual herbicides like metsulfuron-methyl or aminopyralid when rain is expected and seedbed is bare.


After Rainfall: Soil moisture supports active plant metabolism, improving uptake of systemic products.


Application Techniques


High-Volume Foliar Spray: Ensure full leaf coverage to the point of runoff. Recommended for dense infestations or hard-to-wet species like docks.


Boom Spraying: Suitable for large pastures or cropping areas. Use flat fan nozzles and overlap spray patterns for uniform coverage.


Spot Spraying: Ideal for isolated patches. Use low pressure to avoid drift and add a wetting agent for tough, waxy leaves.


Cut-Stump or Basal Bark Application: For woody invaders or mature broadleaf perennials with deep taproots. Combine with diesel or oil-based carriers for better bark penetration.


Tank Mixing: Compatible active ingredients (e.g., 2,4-D + dicamba) can improve spectrum and reduce resistance risk. Always test compatibility before large-scale mixing.


Adjuvants & Penetrants
Adding a premium penetrant or non-ionic surfactant ensures herbicides stick to and enter tough-leafed or hairy weeds. For example, docks, spear thistles, and some woody weeds may repel spray droplets without a penetrant.
At POMAIS, we not only supply broad-spectrum herbicide formulations—we also guide our clients on tank mix ratios, spray volumes, nozzle types, and coverage strategies. Our aim is to help you achieve maximum efficacy with every application, whether you're managing 50 hectares or thousands of acres.
Next, we’ll look at how to integrate land management practices alongside herbicide use for more sustainable and cost-effective weed control.
Supporting Land Management Strategies
Herbicides are powerful tools, but they work best as part of a broader weed management system. By combining chemical control with sound land management practices, you not only enhance herbicide effectiveness, but also reduce weed pressure year after year.
Here are key strategies you can implement alongside herbicide use:
1. Pasture Competition
Maintaining dense, vigorous pasture is one of the best ways to suppress broadleaf weeds naturally. Healthy grasses crowd out weed seedlings, limit light to the soil surface, and reduce the available nutrients weeds need to establish.


Fertilize pastures strategically to encourage rapid recovery after spraying


Avoid overgrazing, which creates bare patches where weeds can take hold


Reseed thin or bare areas with competitive forage species


2. Paddock Rotation and Stock Management
Rotating stock allows pastures to rest and regenerate, improving grass density and reducing weed re-establishment. Well-managed rotation also helps distribute nutrient load and reduce high-traffic weed zones near water troughs or gateways.
3. Machinery and Hay Hygiene
Weed seeds often spread through machinery, vehicles, and contaminated hay.


Clean spray equipment, tractors, and harvesters between properties or paddocks


Inspect and avoid using hay from weed-infested areas


Isolate new stock in quarantine paddocks to avoid introducing seeds via manure


4. Timely Intervention
Monitor weed growth across the seasons and apply herbicides early, before flowering and seed production begin. Targeting weeds while they are young and vulnerable reduces the need for repeat treatments and protects overall pasture integrity.
By integrating these agronomic practices into your weed control program, you can improve long-term suppression and reduce reliance on chemical inputs over time.
At POMAIS, we assist our clients not just with herbicide supply, but also with strategy development, ensuring your investment delivers the highest possible return—both agronomically and economically.
POMAIS Herbicide Solutions for Broadleaf Weed Control
At POMAIS Agriculture, we specialize in providing reliable, scalable herbicide solutions tailored to the needs of pasture managers, commercial farms, cooperatives, and agrochemical distributors. Our product line covers a full range of broadleaf weed herbicides—from selective systemic formulations to non-selective knockdown products—available in multiple concentrations and dosage forms.
Our Key Offerings Include:





Active Ingredient
Available Formulations
Application Focus




2,4-D (ester or amine)
72% SL, 50% EC
General broadleaf weed control in pastures and crops


MCPA
500g/L SL
Selective control in cereal crops and grassland


Dicamba
480g/L SL
Resistant weed control and tank mix partner


Fluroxypyr
200g/L EC
Fast action on thistles and rosette weeds


Clopyralid
300g/L SL
Residual control of ragwort, capeweed, docks


Aminopyralid
Custom blends
Extended control in pasture weed programs


Metsulfuron-methyl
60% WG
Low-dose systemic treatment; pre/post emergent use


Glyphosate
41%, 62%, 75% SL
Non-selective burndown or spot application




We also offer pre-formulated combinations like:





2,4-D + Dicamba


MCPA + Fluroxypyr


Aminopyralid + Metsulfuron (customizable per registration needs)


OEM & B2B Advantages
As a herbicide manufacturer and exporter, we support our B2B clients with:


OEM/ODM services: customized labels, bottles, cartons, and formula strength


Flexible packaging: from 100ml retail packs to 200L drums for bulk use


Documentation support: COA, MSDS, full product registration dossiers


Global logistics: container loading, mixed product supply, and timely delivery


Technical consultation: application rates, tank-mix compatibility, crop safety reviews


We are actively partnering with clients across:


South America


Africa


The Middle East


Central Asia


Eastern Europe and CIS


Whether you need high-volume herbicide supply for seasonal demand, or a tailored product portfolio to build your local brand, POMAIS delivers professional-grade herbicides with full export support.
Final Takeaway – Act Early, Choose Smart, Apply Effectively
Broadleaf weeds are persistent, aggressive, and costly if ignored. But with the right combination of early identification, targeted herbicide selection, and integrated land management, they can be brought under control before they impact your productivity or profitability.
At POMAIS, we understand the complexity of weed management in diverse agricultural environments. That’s why we offer not just products, but solutions—from selecting the ideal active ingredients for your region, to supporting OEM branding, documentation compliance, and large-scale delivery.
Here’s how you can move forward:


Assess your current weed pressure: Identify dominant species across your land


Select the correct mode of action: Choose systemic or residual herbicides suited to your crop or pasture type


Apply at the optimal time: Avoid waste by timing your application at early growth stages


Partner with a reliable supplier: Ensure you have access to consistent, compliant, and scalable herbicide solutions


Whether you're a distributor expanding your agrochemical portfolio or a land manager needing high-efficacy weed control, POMAIS is your trusted partner for professional-grade herbicide supply.
Let us help you keep broadleaf weeds in check—efficiently, effectively, and sustainably.

Capeweed (Arctotheca calendula) is a fast-spreading annual broadleaf weed that poses a serious threat to pastures, cropping systems, and animal health across Australia and similar climates. Recognised by its distinct yellow daisy-like flowers and low-growing rosette, capeweed competes aggressively with pasture species, reduces forage availability, and in some conditions, becomes toxic due to nitrate accumulation.
If you're a distributor, agronomist, or livestock producer, understanding how to identify and control capeweed is vital to ensuring pasture productivity and safeguarding livestock health. At POMAIS, we support clients across agricultural sectors with registered herbicide formulations, expert guidance, and scalable solutions for weed control. This guide outlines practical strategies to help you manage capeweed effectively and professionally.

Weed Profile: What Makes Capeweed a Problem?
Capeweed is a winter-growing annual that germinates in autumn and dominates in spring if left unchecked. Key characteristics include:


Flat rosette with soft, lobed, hairy leaves


Bright yellow flowers with black centres


Shallow fibrous root system


Prolific seed production, capable of forming dense mats


Capeweed prefers disturbed soils, overgrazed pastures, and areas with low ground cover. In addition to reducing the palatability of forage, it accumulates nitrates and oxalates under certain soil and climate conditions, posing risks of poisoning to grazing animals such as sheep, cattle, and horses.

Best Practices for Capeweed Control
1. Early Identification and Timing
Capeweed control is most effective when applied at the seedling to rosette stage, typically from autumn to early winter. Once flowering begins, chemical control becomes less effective, and seed bank replenishment becomes likely.
2. Cultural and Grazing Management


Maintain competitive pasture species (e.g., ryegrass, clover) through appropriate fertilisation and reseeding.


Avoid overgrazing, which creates bare patches and allows capeweed to establish.


Use rotational grazing to maintain sward density and improve weed suppression.


3. Herbicide Control: Selective Chemical Solutions
The following active ingredients are commonly recommended for capeweed control in pastures and cropping systems:



Application Stage
Active Ingredient(s)
Formulation Type
Notes


Early post-emergent
MCPA
Amine/ester (EC/SL)
Selective for broadleaf weeds, safe for grasses


Post-emergent
Bromoxynil
EC or SC
Contact herbicide, ideal for younger weeds


Broader spectrum
MCPA + Bromoxynil
Mix formulation
Synergistic activity for heavy infestations


Cereal crops
Diflufenican
SC
Provides residual control, often mixed with MCPA


Non-crop/renovation
Glyphosate
SL
For knockdown prior to reseeding



Always follow product labels and rotate actives where possible to prevent herbicide resistance.
4. Integrated Control Programs
For high-pressure infestations or regions with long capeweed histories, integrate:


Pre-emergent herbicides in cropping rotations


Mechanical mowing/slashing prior to flowering


Reseeding programs post-suppression to restore desirable cover



Safety and Livestock Considerations
Capeweed toxicity increases under:


High nitrogen fertilisation


Stressful growing conditions (drought or frost)


Heavy grazing of young plants in early spring


Animals may exhibit symptoms of nitrate poisoning such as weakness, labored breathing, or sudden death. If pastures are dominated by capeweed, restrict grazing and consult a veterinarian.

Why Work with POMAIS for Capeweed Herbicide Supply?
POMAIS offers:


Registered active ingredient formulations including MCPA, Bromoxynil, and Glyphosate


Support for OEM/private label products


Expert recommendations based on local pasture conditions


Documentation for MSDS, COA, and compliance


Our herbicides are available in EC, SL, and SC formulations in bulk packs for farm supply stores, cooperatives, and export clients. We ship across South America, Africa, Central Asia, and the Middle East.

Conclusion: Start Capeweed Control Early for Best Results
Capeweed control isn’t a one-time solution. It requires early intervention, strategic herbicide use, and consistent pasture management. Whether you are advising clients, managing a supply channel, or treating your own paddocks, proactive action is key to reducing capeweed infestations.
For custom herbicide solutions, technical support, or product samples, contact POMAIS Agriculture today.