It’s important to note that the chemicals in most weed killers are not as effective during warmer temperatures. With glyphosate as its primary ingredient, this product does need to be handled and used with care. It’s toxic to pollinators and pond life, and children / pets need to be kept off the treated area until it’s dried. It does take a while to dry – up to 48 hours. The Weedol Ultra Tough WeedKiller Liquid Concentrate is arguably the easiest weed killer to apply of all the ones I tested. It doesn’t come pre-mixed, but it can be diluted in either a watering can or sprayer.

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.

How The DIY Works Team Tests & Rates The Weed Killers

Have you tried every household weed killer on the market and still have weeds sprouting in your garden? Perhaps it’s time to upgrade to a professional weed killer. When using a garden sprayer, these are strong concentrated solutions that must be handled with caution. These commercial weed killers are usually systemic, meaning they enter the plant’s entire system and kill the entire plant, including the root. The Roundup Super Concentrate Tough Weedkiller is our choice for Best Weed Killer for woody weeds and tree stumps. It’s also based on glyphosate but is very effective for brambles, nettles and dandelions. But once again, beware your grass. This weed killer can kill all greenery (including your lawn!) so a lot of care needs to be taken. If you spray any weeds on your lawn, you’ll likely affect the surrounding area too. For this reason, it’s better for individuals or clusters of weeds on your driveway or patio. Roundup Super Concentrate Tough Weedkiller is ideal for eliminating tougher, deep-rooted weeds like brambles, thistles, nettles, and couch. Most other weed killers can’t handle this type of growth. This also means that Roundup Super Concentrate deal with tree stumps as well as woody shrubs. Rootblast - Total Weedkiller - Ready To Use weedkiller Kills Weeds & Roots - Biodegradable in Soil - Non-selective Weedkiller

One thing to note about this weed killer is that it doesn’t work especially fast. To kill the roots, it needs around 3-4 weeks. While the weeds do start to wilt within a few hours, it takes 7 days before I actually felt the weed killer was working! Despite the slower results, it does work as well as others on the market, and it’s very easy to use. Vertebrate repellents (e.g. cat repellents - unless specifically for the purpose of protecting plants) We have to mention here our only choice that won’t harm your grass, but kills pretty much anything else. The Vitax SBK Brushwood Tough Weedkiller is safe to use on your grass yet it’s powerful enough to clear large areas of brushwood. Triclopyr-based commercial-grade weed killers are selective which means that they kill nearly everything EXCEPT grass. We include one of these products, the Vitax SBK Weedkiller, for those home gardeners who are haunted by the weeds in their otherwise lush and magazine-worthy lawns. Application Making up the correct concentration

Products registered under Biocides legislation

Vitax does have a residual effect so you can expect the spray to linger in the soil for a few weeks after application. This does stop you from planting in the area straight away. The active ingredient is biodegradable with a half-life of 60 days, but it remains active in dead vegetation for up to 90 days. As such, this weed killer must be applied at least six weeks before re-cultivating or sowing.