Making a homemade weed killer will appeal to anyone looking to reduce the impact of harsh chemical herbicides on their yards and gardens. study from NIH And UC Berkeley School of Public Health Chemical herbicides have been linked to metabolic disorders, liver inflammation and other negative effects. Homemade weed killer offers a more natural solution. However, despite the definite benefits of using a DIY weed killer, there are some significant drawbacks, such as skin irritation, environmental impact, and pest-killing effectiveness, to consider.
First, though, we need to go over the common formulas that people use in their own weed killers. is Three common kitchen staples experts say you need to make a good DIY weed killer: Vinegar, salt and soap. These ingredients are in no way exclusive, and do not need to be mixed together in one spray. for example, A great natural formula that will kill weeds A mixture of four parts horticultural vinegar and one part water.
Other common mixtures include baking soda and vinegar, lemon juice, and just plain boiling water. Today, we’ll focus on mixtures that use boiling water, vinegar-based sprays, and salt. Each of these weed killers will definitely keep harsh chemicals out of your yard without breaking your wallet. However, they also have some major downsides that you should know before using any of them.
Homemade weed killer is cheap and easy to make
One of the main advantages of making your own homemade weed killer is that it is incredibly inexpensive. As we have already mentioned, it can be made from kitchen ingredients – the simplest of which is boiling water. You can get this free from your faucet and pour it directly onto weeds growing in cracks or between bricks on your patio or walkway.
However, vinegar is by far the most common ingredient you’ll find in homemade weed killers. The reason is quite simple: acetic acid. Any vinegar with an acetic acid content between 5% and 10% will kill young weeds in a few weeks. Older, more established weeds require higher concentrations of acetic acid. Another benefit is that acetic acid is biodegradable, so it won’t accumulate in your soil. Grocery store vinegar is around 5% acetic acid, but you can Make it a stronger weed killer by adding orange essential oil and dish soap.
Adding salt is another natural way to kill weeds. Salt naturally absorbs moisture and will act to dehydrate the weed’s leaves and roots, effectively killing it. All you need is regular table salt or sea salt, both of which are readily available at grocery stores. Avoid using rock salt, as it is considered highly toxic.
Safety, efficacy and environmental drawbacks
Even with homemade weed killers wearing the “all-natural” label, there are still some significant drawbacks you’ll want to consider. The first is safety. If you are using vinegar with an acetic acid concentration greater than 11%, be aware that it can burn the skin and cause eye irritation. Boiling water can also cause serious burns if you are not careful. Therefore, proper precautions should be taken before mixing solutions together or applying them to your yard.
Then there is the question of the environment. Vinegar may be good at killing weeds, but it’s pretty indiscriminate at taking out other plants as well. Salt can also be problematic, as it takes a long time to break down in the soil, can disrupt growth cycles, burn other nearby plants and potentially poison the soil which will kill important earthworms. Boiling water can also kill microbes that are essential for a healthy environment.
Then there is the question of overall effectiveness. The reason for buying commercial herbicides is that they have gone through enough testing to prove that they can do the job of killing weeds. Homemade remedies are not, so you may have varying levels of effectiveness versus certified results. For example, if your homemade vinegar solution doesn’t actually reach the root of the weed, it will grow back later. Ultimately, it’s up to you to make the final decision about what will and won’t work for your yard.
