Natural weed killers often show to be efficient without leaving behind any potentially hazardous residues. Some natural weed killers are ineffective if you are attempting to eradicate weeds in a big area without the option of manually plucking them out one by one. For example, boiling water may effectively eliminate weeds in a short amount of time, but there is no method that is practical for applying boiling water over a big area. To get rid of the weeds in the region, pick for a pre-emergent treatment, such as corn gluten meal, or a post-emergent treatment, such as vinegar or plastic overlays. Both of these approaches are effective.
Why Go Natural
The Environmental Protection Agency of the United States controls chemical herbicides and monitors the amounts of toxicity they contain; nonetheless, these herbicides may occasionally have side effects that are unwanted and are often not investigated. Even though the EPA deems it to have a low level of toxicity when it is used appropriately, a common herbicide that contains glyphosate has been associated to a variety of adverse health effects in humans, including birth abnormalities, miscarriage, and some types of cancer. Use organic weed killers in your yard and garden if you have a preference for sticking to substances that are more natural.
Corn Gluten Meal
Corn gluten meal has one key advantage over many other natural herbicides, and that is the fact that it does not destroy the plants that are already there. It will not harm your plants if you distribute it before weed seeds develop but after your other plants or grass have been established. Instead, it will work as a fertiliser, giving some nitrogen to the soil, and it will not harm your plants if you spread it after they have become established. To apply the meal, which you can normally buy as either a powder or pellets, distribute it over the area using a seed spreader. The meal may be purchased in any of these forms. Use 20 pounds per 1,000 square feet. At this rate, it may be used with an application of fertiliser, but if you anticipate a major weed issue, you should increase the amount to as much as 80 pounds per 1,000 square feet. Even though you don’t have to mix it with water before applying it, you should still apply a quarter of an inch of water if it doesn’t rain during the next five days.
Vinegar that is used in the home typically contains around 5 percent acetic acid, which, when it comes into contact with plant leaves, causes severe damage. For the majority of weeds, this concentration is adequate; but, for larger applications, a 10–20 percent solution is more effective. This eliminates all of the plants in the area, not just the weeds, and it does not leave behind any residue in the soil that may inhibit the growth of new plants. To treat one acre of land, you will need a combination that is 60 gallons in size and contains 80 percent water and 20 percent vinegar. This combination is efficient against a wide variety of weeds, especially broadleaf weeds, according to the Center for Environmental Farming Systems. Its effectiveness is rated at 80 percent. If the concentration is more than 10 percent, you should safeguard your skin by using protective gear such gloves and goggles since the high acid content might irritate or burn your skin. Garden supply shops and other retailers that specialise in agricultural items are good places to look for products with a greater concentration.
There are several circumstances in which organic food is not the best choice. To effectively manage weeds, for instance, mix equal parts salt and water. However, doing so would alter the salinity of the soil, which will make it impossible for plants to grow there for years. The soil is solarized, the weeds are essentially cooked, and the seeds are killed when the area is covered with black plastic during hot weather. However, this puts the area out of action for many months. Burning the leaves of the plants using a broadcast flame cultivator kills all the plants it comes into contact with, but it does not always destroy the weed roots, which might result in new weed growth.