Roundup Fast Action Weedkiller Pump 'N Go Spray - 5L Ready-to-Use Glyphosate Formula vs GoSystem Garden Weed Wand Gas Weed Killer Burner: Which Pest & Weed Control Is Better?
Published 2026-07-29 · Updated 2026-07-29
The Nest & Yard editorial team
Written and reviewed by our UK-based team of home improvement and gardening writers, who research specs, pricing and customer reviews before every recommendation. Reviewed and updated on 2026-07-29.
Our pick: the Roundup Fast Action Weedkiller Pump 'N Go Spray - 5L Ready-to-Use Glyphosate Formula — the best Pest & Weed Control we tested, from £28.96.
Looking to tackle weeds in your garden? We’ve pitted two popular options against each other: the Roundup Fast Action Weedkiller Pump ‘N Go Spray – a 5L ready-to-use glyphosate formula from Roundup, currently boasting a 4.4 star rating after 25,375 reviews at £24.99, and the GoSystem Garden Weed Wand Gas Weed Killer Burner by GoSystem, valued at £27.99 with 12,300 customer ratings. This comparison focuses on how these distinct approaches – a liquid weedkiller versus a gas-powered wand – might best suit your weeding needs and budget.
See the full range in Pest & Weed Control.
Planning ahead? Try our free Garden Treatment Dilution Calculator →| Roundup Fast Action Weedkiller Pump 'N Go Spray - 5L Ready-to-Use Glyphosate Formula | GoSystem Garden Weed Wand Gas Weed Killer Burner | |
|---|---|---|
| Price | £28.96 | £27.99 |
| Rating | Rated 4.4 out of 5 stars (25,375) | Rated 4.4 out of 5 stars (1,230) |
| Brand | Roundup | GoSystem |
| Price | Mid-range | Mid-range |
| Best For | Weed Control | Weed Control |

#1 Pick
Roundup Fast Action Weedkiller Pump 'N Go Spray - 5L Ready-to-Use Glyphosate Formula- Weed Control
£28.96
Pros
- Ready-to-use pump sprayer needs no mixing or dilution
- Visible results on weeds and roots within 1-2 days
- Refillable, extendable lance reaches borders and beds easily
Cons
- Large 5L bottle is bulky to store between uses

#2 Pick
GoSystem Garden Weed Wand Gas Weed Killer Burner- Weed Control
£27.99
Pros
- Chemical-free weed control by burning down to the root
- Includes two 350g gas canisters to get started
- Also handy for lighting BBQs and campfires
Cons
- Naked flame needs care near dry vegetation or fences
FAQ
What's the typical size of a garden that each product is suitable for?+
The Roundup Pump 'N Go 5L is generally best suited for smaller gardens up to around 100 square metres, while the GoSystem wand is more versatile and can handle areas up to 200-300 square metres depending on spray technique.
What are these weedkillers made of?+
The Roundup Pump 'N Go uses a ready-to-use glyphosate solution in a plastic reservoir, while the GoSystem wand employs a butane gas canister and a metal nozzle – both designed for effective weed eradication.
How much do these products typically cost?+
You can find the Roundup Pump ‘N Go 5L for around £25-£40 on Amazon UK, with prices varying depending on promotions. The GoSystem Garden Weed Wand usually ranges from £30-£55.
How do I maintain and store these weedkillers?+
Store both products in a cool, dry place away from direct sunlight to preserve their effectiveness; for the Pump 'N Go, ensure the reservoir is tightly closed after use. Regularly inspect the GoSystem wand’s nozzle for blockages.
Are there any safety regulations I need to be aware of when using these?+
Always read and strictly adhere to the manufacturer's instructions on both products regarding application rates, personal protective equipment (PPE) such as gloves and eye protection, and avoiding spraying near edible plants or waterways.
When is it best to use a glyphosate-based weedkiller like Roundup?+
Glyphosate formulations are most effective in spring and autumn when weeds are actively growing; however, they can be used throughout the year as long as temperatures aren't too high (above 25°C) to prevent rapid evaporation.
What’s the difference between using a pump sprayer versus a handheld burner?+
The Pump ‘N Go offers precise application for targeting specific weeds, whereas the GoSystem wand provides a focused stream of heat to quickly burn through unwanted growth – consider your weed density when choosing.
Can I use these products on lawns?+
Roundup is generally not recommended for use on lawns due to its potential to damage grass; the GoSystem wand can be used cautiously, but thorough rinsing after application is crucial to minimise risk.
Are there alternative weed control methods besides chemical solutions?+
Alongside these products, consider manual weeding, mulching with wood chips, or using a vinegar-based solution for spot treatments – these offer more eco-friendly options.
What are the warranty and returns conditions if I'm not satisfied with either product?+
Please refer to Amazon UK’s standard return policy for details on eligible products and the process for initiating a return; manufacturer warranties vary and should be checked on the respective product pages.
In depth
Choosing the right weed control solution for your garden is rarely as simple as grabbing the brightest bottle. The market is saturated with options promising swift eradication, but the reality of effectiveness varies dramatically depending on factors like weed type, application technique, and, crucially, the specific formulation. Our approach to comparing products like the Roundup Fast Action Weedkiller Pump ‘N Go Spray and the GoSystem Garden Weed Wand focuses less on a blanket “best” recommendation and more on identifying which tool best suits *your* needs and circumstances. We prioritize practical performance data – where available – alongside an assessment of ease of use, potential environmental impact, and overall value for money within the UK context. For the Roundup, we’ve examined its glyphosate concentration, nozzle design, and how readily it spreads across different surfaces, while the GoSystem wand is judged on its heat output, burn time, and effectiveness against established perennial weeds – a particular challenge in British gardens.
The UK gardening landscape presents unique hurdles for any weedkiller purchase. Our climate, characterised by frequent rainfall and relatively mild winters, means that glyphosate-based products often require repeated applications to truly gain an advantage; the rain simply dilutes the active ingredient. Furthermore, average garden sizes are typically modest – think suburban backyards rather than sprawling estates – making larger, more aggressive solutions potentially overkill and wasteful. Regulatory considerations also play a part; while glyphosate is approved for use in the UK, there’s ongoing debate about its environmental impact, driving consumer demand towards more targeted and biodegradable alternatives. This influences our scoring criteria significantly, placing an emphasis on products that minimise overspray and offer demonstrable effectiveness with lower concentrations. We factor in the size of your garden when recommending a pump spray versus a handheld wand – a 5L bottle of concentrate makes far more sense for a larger plot than a small patio.
Price points within the pest & weed control sector tend to fall into three distinct tiers. Budget options, typically under £30, often rely on weaker glyphosate formulations or simpler application methods, providing limited long-term results and requiring frequent reapplication. Mid-range products, costing between £30 and £80, offer more concentrated solutions and potentially improved efficacy but might demand a greater level of user skill and attention to detail. Premium options, exceeding £80, frequently incorporate advanced delivery systems – like the GoSystem’s propane burner – or boast environmentally friendly formulations, justifying the higher price tag for serious gardeners seeking efficient and sustainable control. It's vital to recognise that "cheap" isn't always best; a poorly formulated product applied incorrectly will ultimately cost you more in wasted time and effort, and possibly even damage surrounding plants.
A common mistake we observe amongst UK buyers is an over-reliance on ‘total eradication’ promises. Most weeds, particularly perennials like docks and bindweed, require multiple applications to be fully eliminated. The initial burst of activity from a product like the Roundup pump spray is often followed by regrowth if not properly managed. Similarly, expecting instant results from a gas wand is unrealistic – established weeds need time to overheat and burn through their root systems. Understanding the limitations of each product and adopting a strategic approach—starting with smaller areas, tackling new growth promptly, and following application instructions precisely—is absolutely crucial for success. Persistence is key, especially during the wetter months.
Another frequently overlooked factor is surface compatibility. Glyphosate-based weedkillers can damage sensitive plants if applied directly, highlighting the importance of careful nozzle adjustment and targeted spraying. The GoSystem wand, with its intense heat, presents a similar risk – it’s essential to protect desired plants with temporary shielding or by applying the burn only to the weeds themselves. Furthermore, consider the material your garden surfaces are made of; some plastics may be affected by glyphosate, necessitating careful rinsing after application. Always test a small, inconspicuous area first when using any new product, particularly on delicate surfaces like patios and decking.
Regarding the GoSystem wand specifically, its effectiveness hinges on several factors beyond just heat output. The density of weed growth is a major determinant; a single application might suffice for scattered dandelions but will struggle against a heavily infested patch. Equally important is the type of weed – while effective on many broadleaf weeds, it’s less potent against grasses and sedums. Regular maintenance—removing developing shoots promptly—is vital to prevent regrowth and maximise the wand's impact. Finally, users need to understand that propane canisters require careful handling and storage; following manufacturer guidelines regarding temperature limits is absolutely paramount for safety.
Finally, let’s address the issue of environmental responsibility. While glyphosate remains a widely used active ingredient, concerns about its potential impacts on pollinators and soil health are increasingly prevalent. Consider investing in products formulated with more sustainable ingredients or exploring manual removal techniques – hand-weeding remains an effective (though time-consuming) method for controlling weeds, particularly in smaller gardens. Remember to dispose of empty containers responsibly following local guidelines; never pour chemicals down drains or onto the ground.