Organic Weed Killer
An organic weed killer is safe and natural way to kill the weed without any harmful side effects. The thing that makes this type of weed fighter so popular is that it contains ingredients that are natural as well as safe. There absolutely are no chemicals or herbicides in an the organic form.
The market currently has four main types of organic weed killers. They are acidic, salt, germination inhibitors and fatty acids.
Acidic weed killers have ingredients like lime, vinegar or lemon that are acidic in nature. The concentration of acid is usually 15% to 20%. When it is sprayed on the weed, the acidic ingredients destroy its protective layer which causes it to die. It also kills the roots.
Salt or to be particular, garden-variety rock salt is a pretty efficient weed killer. It basically dehydrates the weed thereby killing it. If the salt reaches the soil then it can actually kill the roots by dehydrating them. However, too much application of salt to the soil can render it unusable.
Germination Inhibitors like corn gluten meal are a popular organic weed killer. The best thing about this type of weed control is that it affects the weed not the established plants with a good root system. It can easily be spread over all over a lawn to prevent the new seedlings from growing, without worrying about harming the plants or other established plants without harming them.
Weed killer with fatty acids work to dissolve the plant leaves' membranes causing the leaves to dry and then die. A common fatty acid ingredient is the coconut fatty acid soap. Like the acidic nature of these products, they also all the plant they touch, hence they have to be sprayed very carefully.
Also popular are the other organic weed killer solutions like the Concern Weed Killer, which has to be sprayed in a dry or warm weather on the leaves. This simply kills the plant tissues as soon as it contacts them.
Another way to do this is with a set of clear polyethylene sheets which is used in the process of soil polarization. The polyethylene sheets have to be held place on the soil with bricks for a period of 4 to 6 weeks which simply kills all kinds of seeds and weeds.
Landscape fabric is also a good organic weed killing product. It has to be laid down on the ground with holes cut for the plants and mulch put over the fabric. It simply keeps the growth of weed at bay.
Organic mulch when spread around the weed's base can also kill them in a natural and organic way.
Vinegar is also popular as an organic weed killer. When the weeds are saturated with vinegar, the sun simply kills the weeds in a period of just 2 days.
Regular salt is also a very efficient organic weed killer product, only a single teaspoon of salt can kill the weed. However, it has to be used cautiously on a soil prepped for gardening.