What Are the Best Methods For Getting Rid of Knotweed?
Japanese knotweed is an invasive plant that has spread widely across the USA and its territories. The name knotweed means “cross-like weed” and the plant can reach a very large size with a spreading root network and can grow very rapidly.
Japanese knotweed originally originated in eastern Asia but was introduced to the west in the middle-1800’s as a decorative plant. It was prized for its beautiful leaves and it was planted throughout many famous gardens. It became so popular that it soon spread out to other countries. Japanese knotweed in Europe and America is generally known to be genetically a clone of a common female plant. A female knotweed may reproduce by seeds, spores, or roots, but not both.
The knotweed had no significant effect on these western countries, but now it is threatening other parts of the world. As the knotweed spreads through North America, the invasive plant can invade many native plants as well as grasses, shrubs, and trees. In addition to killing grasses, bushes, trees, and shrubs it can also damage gardens, homes, roads, and landscapes.
Once the plant spreads, it will kill native grasses, shrubs, and trees. Because of its ability to spread so quickly, knotweed has the potential to completely take over areas in a very short period of time. Because knotweed doesn’t require soil to grow, it can travel in large masses, especially if there is a chance of it penetrating your home or garden from a nearby highway.
The knotweed invades a landscape by eating and sucking on the native plants and the roots of plants it has not yet invaded. This process can destroy a small garden very quickly and can cause very poor quality of life to the native plants that are affected. Many people who have become infected by this plant often develop skin infections, respiratory issues, asthma, and other health problems as a result of having too much of the plant in their surroundings.
The spread of this plant is often facilitated by warm climates. In colder climates knotweed spreads slower because the warmer temperatures that allow it to spread more slowly kill the plant and prevent it from growing. Because of this knotweed can spread easily between gardens, parks, gardens, and homes without causing an impact on the native species of plants, but is less likely to spread to grasslands and other places that can sustain a large spread of the plant. Because of the rapid growth of knotweed, this plant can cover large areas quickly and the only natural methods are often used to control it.
A natural method of controlling knotweed involves using a chemical that kills the plant from roots and shoots while not harming other natural plants. Other techniques include controlling the population of the plant by trimming the plant back and using barriers that limit its access to water. However, most often than not, people choose to control the knotweed with chemicals.
There are several types of chemical that you can use to treat the knotweed and the most common is a nematode, which is used to control seed production, reduce root production, and slow down the spread. It also prevents the plant from taking root in the first place. It is a good idea to consult a local nursery to find out which type of chemical will be best suited to the needs of the garden you are trying to control.
Another treatment option is a natural substance known as nematoxin. This is a very strong chemical that stops the plant from taking root by slowing down the rate at which plant roots grow. It also reduces the number of seeds, the plant produces and limits its ability to spread.
Another effective treatment option for knotweed is to use nematodes in conjunction with a biocontrol, which is a plant that is used to inhibit the growth of both the knotweed and the natural plant predators that can damage the natural plant and kill it. This type of a biocontrol can be applied to your garden before the knotweed is able to reach its full potential by killing it from the inside, which is one of the biggest reasons why knotweed invades a garden.
There are many different options available, depending on how well you know the area where you want to eradicate the knotweed. The best thing to do is to research and find out what the best methods of getting rid of the plant are so that you know what options you have.