Glyphosate – kills the majority of plants, including perennial grasses, so it’s not one that you want to accidentally get on the lawn or flowerbed. It is effective at killing well-established weeds because it works from inside the weed itself. After being absorbed by the leaves and stalk of the weed, glyphosate spreads to the rest of the plant, including the roots. In recent years, it’s developed a reputation for being dangerous; however the jury is out on a definitive conclusion. Some studies have found it to be carcinogenic, whilst others consider it safe for humans to use as long as the instructions are followed. Glyphosate is also thought to negatively affect wildlife such as bees and aquatic life. It can stay in the soil for a long time as well. The bottle of weed killer automatically dispenses out pre-measured amounts of the concentrated product. Although some thought is still required whilst making up the diluted formula, it’s easier than a classic free-pour dispenser. Ideal for use around sheds and greenhouses, along fences, gravel areas, and other areas not intended for vegetation such as paths and drives. It can also be used for ground clearance before autumn or spring digging and removing old lawns before reseeding or turfing. How to use

Some people also choose to use homemade natural weed killers, using a solution of white vinegar, salt and liquid dish soap. Regularly hoe any loose soil to combat small weeds. This can be both a preventative and offensive measure; it discourages weeds from taking root as well as disrupting the growth of new weeds. Fertilise grass regularly. This can prevent new weeds from growing on the lawn. Fertilising can help grass build a healthy root system which can choke out weeds, whilst improving the condition and look of your lawn at the same time. However, the results are reliably positive, albeit slow – it takes around one week for clover to start visibly yellowing and dying. There may still be the occasional dandelion that needs to be removed by hand after using Weedol Weed Killer, but it does a fairly comprehensive job of clearing the lawn (without harming the lawn itself).I think we all agree that having the odd weed here and there is par for the course in the garden. However, those pesky plants can spread so rapidly, they easily have the potential to invade entire lawns and flowerbeds.

Ideal for use on overgrown areas, around sheds and greenhouses, along fences, gravel areas, paths and drives, ground clearance before autumn or spring digging, killing old lawns before reseeding or turfing. How often to apply

The Deadfast Concentrated Weed Killer Sachets is for those who don’t want to worry about mixing the right amount of product. It comes with 12 sachets and is able to cover up to 720 sqm. You can simply dispense a sachet of product into a watering can, add water and then apply to the weeds you are wanting to treat. Whilst Neudorff might not be a particularly well-known company, their WeedFree Plus Concentrate is a powerful weed killer that works on relatively stubborn weeds. Some weeds can be killed by simply pouring hot water over them. This can be effective on patios and driveways but will scald grass if used on the lawn. A4: We advise treating weeds between April and November when the weeds are actively growing on a dry calm day and with sufficient leaf surface to absorb enough weedkiller to kill the weed. In cooler weather weed control will take longer. Visible effects in 24 hours. Weed death may take up to 28 days (in cold weather activity is slower). Where to use

Weed killers with organic ingredients can still be strong, and contain harmful ingredients as well. However, organic ingredients are generally considered less damaging for the environment and wildlife. Florasalum – effective against dandelions, white clover and daisies before the plants have reached maturity. The Gallup Home & Garden Weed Control has been promoted as the strongest weed killer available for domestic use, and it did work very well. I noticed visible results within 24 hours, and the roots were killed within a couple of weeks. It’s been designed for both annual and deep-rooted perennial weeds. This is not necessarily due to any shortcoming of the herbicide itself, but related to how plants absorb moisture. Most plants absorb more moisture in the cool temperatures of the early morning, but stop when temperatures rise in the afternoon. These ingredients are used because they specifically target certain types of plants. Therefore, they are often found in selective weed killers as they shouldn’t kill of grass or other vegetation that they’re not intended for.

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Like many off-the-shelf weed killers, it contains glyphosate. While this is strong enough to kill weeds, it’s also strong enough to harm pollinators and pond life. Having said that, treated areas can be replanted 7 days after application, which isn’t bad going for a weed killer.

One of the best things about this weed killer is that it’s fairly simple to apply. There’s a ‘flexi spray’ that clips out of the body, with the pipe clipping to the lid. There’s two spray functions, a jet spray and a fine spray. You will need to touch the nozzle, so gloves are required.

My Top Recommended Weed Killers

MCPA – stands for ‘2-methyl-4-chlorophenoxyacetic acid’ and is used to keep broadleaf weeds like thistle at bay. Finally, look out for a weed killer that comes with a pressure sprayer to make application easier . Some weed killers will need diluting which can be time consuming; however, they often work out cheaper. This bottle contains 360 g of product, enough to cover a 1666 sqm area. It does require mixing before application, but it comes with a measuring cap included which is very easy to use. It can be applied using either a watering can or a sprayer. It’s important to note that the chemicals in most weed killers are not as effective during warmer temperatures. Point spray head 50cm from surface to be treated. Hold trigger for continuous spray. Spray weeds thoroughly to the point of run-off, ensuring leaf surfaces and stem are covered evenly.