Mechanical weed management for hard surfaces

Remove established weeds, moss and the soil that keeps them coming back

A powered sweeper is excellent at collecting loose material. A Kersten weed brush is the key mechanical intervention when vegetation and compacted growth medium are already anchored into paving joints, kerb lines and path edges.

Choose a weed-brush range Use the range selector

Kersten weed brush removing established weeds and soil from a hard surface
Corrective surface reset for tarmac, block paving, concrete, kerb lines and path edges.

6 range familiesHandheld tools through to tractors over 45 hp.
180–400 rpmLow-speed, high-torque Kersten brush operation.
3 brush choicesVersa, Hausa and nylon options for different duties.
Remove the mediumLift vegetation, moss and the soil supporting regrowth.

The mechanical hierarchy

Weed brushing and sweeping solve different stages of the same problem.

The important distinction is whether material is loose on the surface or rooted and compacted into it. A complete mechanical programme often uses both tools, in the correct order.

Weed brush: the remedial reset

Use a weed brush when moss, weeds and soil have become established in joints, cracks, edges or encroached margins. The brush cuts, lifts and agitates the rooted material so the growth medium can be removed.

  • Established weeds and moss
  • Compacted soil in paving joints
  • Path and highway edging
  • Kerb lines, cambers and difficult pockets
This is the central mechanical weed-control operation—not simply a heavier form of sweeping.

Sweeper: collection and prevention

Use a sweeper to collect the loosened arisings after weed brushing and to remove loose leaves, grit and detritus before they decompose into soil. Regular sweeping helps stop the surface returning to the stage where aggressive remediation is needed.

  • Loose leaves, grit and debris
  • Collection after weed brushing
  • Routine preventative cleansing
  • Restoring drainage and surface dryness
Brush first where growth is anchored; collect and maintain afterwards.

Why weed brushes matter in IWM

They physically reset the surface condition that repeated treatment leaves behind.

Thermal, electrical and chemical methods target vegetation. Weed brushing goes further by mechanically removing vegetation together with moss, compacted organic material and soil. That reduction in growth medium can change what is able to re-establish and makes later preventative maintenance more effective.

The objective is not only to make the weeds disappear today. It is to move the surface back towards a shallower, cleaner and more maintainable condition.

1

Diagnose

Assess surface type, soil depth, rooting, access and the risk of damage.

2

Reset

Use the correct weed brush, head, angle and pressure to lift rooted material.

3

Collect

Remove the loosened arisings rather than leaving them to form new soil.

4

Prevent

Return to lighter sweeping, inspection and early intervention before deep re-establishment.

Complete Kersten weed-brush pathway

Choose the platform by access, area and severity.

The same mechanical principle scales from finishing around street furniture to high-output path edging with agricultural tractors and loaders.

WeedGo handheld weed brush clearing moss and weeds around a path edge
Tight accessExisting brushcuttersFinishing work

Handheld WeedGo brushes

Convert a compatible brushcutter or strimmer into a compact weed brush for obstacles, benches, railings, narrow edges and small areas that larger machines cannot reach.

WeedGo 21.0–2.0 kW host range
QuickPro1.8 kW / 2.5 hp+
Poly optionGentler surface work
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Current WeedGo products

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Kersten Weedo II dedicated pedestrian weed brush
Dedicated machineSmall sitesFrequent transport

Weedo II dedicated pedestrian brush

A compact standalone machine for contractors, housing estates, paths and smaller sites. It combines a 50 cm working width with directional brush rotation, adjustable positioning and folding handlebars.

50 cmWorking width
91 kgMachine weight
<2.5 m/s²Hand-arm vibration
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Current Weedo products

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Kersten WKB weed brush attachment on a pedestrian two-wheel tractor
Multi-attachment power unitK-series / UBS-seriesProfessional route work

Pedestrian WKB attachments

Add a professional weed-brush head to a Kersten two-wheel tractor. Adjustable pressure, all-direction angling and replaceable brush sections give a versatile route for paths, squares and cycleways.

40 / 60 cmBrush-head options
8 / 10 sectionsPower-unit dependent
Hydraulic / PTODrive options
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Current pedestrian WKB products

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Kersten WKB 40 weed brush mounted to a ride-on mower
Ride-on mowersRestricted routesFront-mounted visibility

Tractor and ride-on WKB 40

A compact 40 cm brush for ride-on mowers and smaller carrier platforms, suited to narrow routes, squares and edge work where a larger UB system would be excessive.

40 cmBrush diameter
42 kgPublished attachment weight
8 Versa sectionsReplaceable brush tools
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Current ride-on WKB products

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Kersten UB 6080 weed brush mounted to a compact tractor
Compact tractorsWide-area brushingPath edging

UB 6080 professional compact-tractor range

The most adjustable tractor-mounted family for compact and municipal carriers. Choose hydraulic or mechanical drive arrangements, 60 or 80 cm brush plates and the carrier-specific mounting and control package.

60 / 80 cmBrush-plate options
30–60 hpTypical carrier class
H or MHHydraulic / mechanical-hydraulic
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Current UB 6080 products

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Kersten UB EASY heavy-duty tractor-mounted weed brush
45 hp+Loaders and tractorsHeavy path edging

UB EASY heavy-duty range

A simplified, robust 80 cm hydraulic weed brush for larger tractors and loaders. It is aimed at high-output edging and demanding mechanical clearing where the wider adjustment of the UB 6080 is not required.

80 cmBrush diameter
25 L/minMinimum oil-flow requirement
96 kgPublished package weight
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Current UB EASY products

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Brush-tool selection

The head determines how aggressively the machine cuts, lifts and finishes.

Choose the brush after assessing the surface and material. Test unfamiliar or sensitive paving before committing to production work.

Kersten weed brush fitted with replaceable brush segments

Versa brush

Combines thicker flat inner wires that lift soil and cut vegetation with finer outer wires that sweep the loosened material. It is the general-purpose choice for moss, block paving, kerb lines and routine weed brushing.

Best starting point: mixed weeds, moss and compacted detritus on robust hard surfaces.
Hausa heavy-duty twisted-wire weed-brush assembly

Hausa brush

A dense twisted-wire tool for heavily overgrown or demanding work. It provides a more aggressive option for tough material and significant encroachment.

Best starting point: heavy path edging, dense growth and stubborn compacted material.
Nylon weed-brush segment for more delicate surface cleaning

Nylon brush

A gentler alternative for selected surfaces and cleaning tasks. Nylon can be useful where the objective is lighter agitation or where steel tools may be too aggressive.

Best starting point: sensitive finishes, lighter moss and water-assisted scrubbing after a test patch.

Why the Kersten system works

Controlled geometry matters as much as raw power.

The result depends on putting the correct part of the brush into the growth medium at the right angle and pressure while containing the material being released.

1

Multi-direction angling

Angle left, right, forwards or backwards to enter joints, follow cambers and reach path edges.

2

Near-perpendicular attack

Use the brush tips to concentrate pressure, enter pockets and reduce side wear on the wires.

3

Adjustable pressure

Castor or gauge wheels and optional weight let the operator balance cleaning force against brush life.

4

Low-speed torque

Kersten heads operate at 180–400 rpm to reduce projectile energy while retaining useful clearing force.

5

Debris containment

Adjustable guards keep loosened material close to the head, supporting safer operation and easier collection.

Path edging and surface recovery

Recover the path width—not just the visible edge.

Where turf, soil and rooted vegetation have spread over tarmac or paving, spraying or trimming the top growth does not return the asset to its intended width. A weed brush breaks up and removes the encroached growth medium so the hard surface can be exposed, inspected and maintained again.

A mechanical reset for access and infrastructure

Cut through the turf mat, release the soil and reveal the original surface.

Path edging is a high-torque weed-brush task. The machine must follow the edge, control brush pressure and make the overburden friable enough to collect without unnecessarily attacking the sound surface below.

  • Restore usable width for pedestrians, pushchairs, wheelchairs and maintenance access.
  • Remove soil and turf that retain moisture and conceal cracking or edge deterioration.
  • Collect, sweep or blow the loosened arisings away from the recovered surface.
  • Return earlier with lighter maintenance before another deep turf mat develops.
Compare path-edging machinesBook a path trial
Kersten weed brush recovering the edge and original width of an overgrown path
Weed brushing removes the turf, rooted vegetation and accumulated soil; sweeping or blowing then clears the loosened material.
Kersten path-edging trial carried out with Veolia

Veolia cost trial

How machine path edging can save money

The West Berkshire trial compared powered edging with hand work. The published case reports roughly half the working time and a calculated machine payback after 81 miles.

Read the Veolia case study →
Pedestrian Kersten weed brush completing a path-edging task

Pedestrian productivity

Path edging time and effort cut by 80%

See a Kersten pedestrian weed brush remove soil, grass, weeds and moss from a tarmac edge so the friable material can be cleared afterwards.

Read the path-edging article →
Kersten UBS pedestrian weed brush reclaiming an overgrown footpath

Accessibility and asset recovery

Siding out overgrown paths

A practical example of exposing a buried hard surface, restoring usable width and making the broken-up overburden easier to shovel, sweep or blow away.

Read the recovery example →
Bracknell Town Council Integrated Weed Management trial

Measured IWM evidence

The Bracknell weed-management trial

Follow the wider field trial examining preventative brushing, surface condition and how mechanical intervention can support a lower-pesticide programme.

Explore the Bracknell trial →
Operational sequence: identify the true pavement edge, check the surface and buried hazards, set the brush angle and pressure, release the turf and soil, collect the arisings, then move the route onto a lighter preventative maintenance cycle.

Range selector

Start with the carrier and access restriction.

This quick guide identifies the most likely range family. Final selection still requires confirmation of carrier fitment, power, hydraulics, surface and brush type.

Ask for a fitment check

At-a-glance comparison

Match output to site scale without oversizing the machine.

Published figures vary by exact model, bracket and brush plate. Use this table to narrow the family before checking the detailed range page.

RangeBest fitTypical working systemPrimary role
WeedGoBrushcutters and strimmersSteel or poly handheld headConfined areas, obstacles and finishing
Weedo IIDedicated pedestrian operation50 cm, 6-tool plateSmall sites, social housing and repeated transport
Pedestrian WKBKersten K- and UBS-series40 or 60 cm attachmentProfessional route work with a multi-attachment carrier
Ride-on WKB 40Ride-on mower / compact carrier40 cm, 8-section headNarrow tractor routes and front-mounted edge work
UB 6080Compact and municipal tractors60 or 80 cm; hydraulic or mechanical driveAdjustable wide-area brushing and path edging
UB EASY45 hp+ tractors and loaders80 cm hydraulic headHeavy-duty, high-output path edging

See the process

Watch the brush lift material rather than merely move over it.

Look at how the head is angled into the affected area, how pressure is controlled and where the loosened material is placed. The useful output is a cleaner joint or edge with the growth medium physically released for collection.

Book a site demonstration

Mechanical weed-management reading

Understand the surface before selecting the brush.

These articles explain why soil depth, brush geometry, surface construction and collection determine whether weed brushing becomes a lasting reset or a repeated cosmetic task.

Kersten Weedo weed brush used for mechanical weed removal

Brush selection

Moss brushes, weed brushes and weed rippers

Understand the terminology, aggressiveness and surface implications before choosing a tool.

Read the article →
Soil accumulated along a hard-surface edge

Root cause

The importance of minimising soil buildup

Why soil depth affects the type of weed that can establish and the difficulty of later treatment.

Read the article →
Kersten professional weed brush for an Integrated Weed Management programme

IWM equipment

Equipment for an Integrated Weed Management Strategy

See where weed brushes, sweepers, thermal tools and path renovation equipment each fit.

Read the article →
Mechanical path edging with a weed brush

Surface performance

The three biggest threats to block paving

How detritus, blocked joints and moss affect drainage—and where weed brushing fits into remedial work.

Read the article →

Frequently asked questions

Weed-brush essentials

Correct setup protects the surface, controls consumable use and improves the quality of the mechanical reset.

Why use a weed brush rather than only a sweeper?

A sweeper is designed primarily to move or collect loose material. A weed brush is designed to cut and lift established weeds, moss and compacted soil from joints, cracks and edges. The sweeper is often used afterwards to collect the released material.

Which brush should be used first?

Versa is the general-purpose starting point. Hausa is for heavier growth and demanding edging. Nylon offers a gentler option for selected surfaces or cleaning tasks. Always assess and test the actual surface.

Why is the brush nearly perpendicular to the surface?

Using the tips concentrates the working pressure, improves access into pockets and joints and reduces wear caused by dragging the side of the wire across the surface.

How is stone throwing reduced?

Kersten heads use low rotational speeds, typically 180–400 rpm, together with high torque and an adjustable protective guard. A task-specific risk assessment and exclusion zone are still required.

Can water be used with a weed brush?

Water can support scrubbing of dirt and algae on suitable paving. Surface compatibility, runoff, slip risk and the selected brush material must be considered before use.

What happens after weed brushing?

Collect the loosened soil, vegetation and moss. Inspect joints or edges for repair or reinstatement needs, then adopt preventative sweeping and earlier intervention so the growth medium does not rebuild.

Confirm the complete setup

Match the brush, carrier and collection method to the surface you actually manage.

Kersten can check working width, carrier compatibility, PTO or hydraulic requirements, brush type, guards, access and the collection step that follows the mechanical reset.

Discuss a weed-brush applicationReturn to the IWM guide

Frequently Asked Questions

Kersten WeedBrushes are specifically designed for efficient removal of weeds, moss, and the underlying soil from hard surfaces like tarmac and block paving. They incorporate unique features such as specialized Versa or Hausa brushes, multi-directional angling for crevices, an optimal perpendicular attack angle for better pressure and reduced wear, adjustable pressure control, and a low-speed rotation with a stone guard for safety and effective cleaning.

Kersten Weed Brushes utilize two main types: Versa and Hausa. The Versa Brush is versatile, featuring thick inner wires for lifting dirt and cutting weeds, and thinner outer wires for sweeping debris. A nylon variant is also available for delicate surfaces. The Hausa Brush is a heavy-duty option with a dense bundle of twisted wires, designed for demanding tasks like clearing heavily overgrown paths.

The WeedBrush's ability to be angled in all directions is a significant benefit. This feature allows the brush to effectively reach into cracks and crevices, which are common areas for weed growth. By operating the brush on an angle, it can penetrate the joints of surfaces such as block paving and easily adapt to cambers, ensuring comprehensive cleaning across varied terrains.

The Kersten WeedBrush is designed to be used almost perpendicular to the ground, which offers several key advantages. This specific attack angle increases the pressure applied directly to the surface, enhancing the removal of soil and debris. It also significantly reduces brush wear by ensuring the tip, rather than the side, is utilized, thereby extending brush life and providing superior access into surface pockets and cracks for a cleaner finish.

Kersten WeedBrushes rotate at very low speeds of 180-400 rpm to minimize stone throwing. Despite the low speed, high torque ensures a great finish. This reduced speed lessens the energy transferred to stones and debris, preventing them from becoming dangerous projectiles. A protective guard also helps contain material close to the brush.