Anybody who has dealt with the removal of any kind of invasive species knows that it is not an easy task to get rid of them. The effective removal methods of Japanese Knotweed will be used to get rid of it. Professionals will research different methods before they try using certain methods to see which one will work the best.
Chemicals are often applied to the plants. One of the methods that professionals will use is the foliar application. A sprayer is used to apply the chemicals to large areas or single plants. This method will work to get rid of the plants that are there but will need retreating if any of them grow back.
The benefit of this method is that each time it is treated, it will grow back with less and less each time. Each time will require a follow up treatment though. After several treatments, the spot treatment will often be effective for the year.
Another method that will use the same type of chemical is the stem injection method. This injects the solution directly into the plant. It requires a higher concentration of the solution than the foliar application does.
One problem that many people will run into is that some of the chemicals that are sprayed onto the plants are not approved for the injection method. There is a special tool required that will inject the solution into the canes of the plant.
Location is crucial for this method to work. It is much more effective if the procedure is done in the early Autumn season. Regrowth will come back but will not be as bad. Sometimes the spot treatment is going to take care of this.
Encapsulation may have to be done also. This is where they will remove the contaminated soil. It will be contained in a protective membrane that will get buried approximately 5 meters down on the same site as they clean up. In order to use this method, the site has to be large enough.
Excavation will include digging up the contaminated soil for dumping at a licensed landfill. A licensed waste carrier is the only one that is going to be able to move the contaminated soil. This is a method that is used when other methods are not working.
Another method that some people will use is the soil screening method. This is going to allow people to continue to use the same soil that they have been. It does require quite a bit of work to get the soil clean.
This method uses a screening machine. This will remove all of the roots of the Japanese Knotweed from the soil. As long as all of the pieces of root are removed, it will be very effective.
Most of the methods will need to have them retreated the following year because they will regrow. The excavation, encapsulation and screening methods should not require retreatment unless there are nearby plants. It is difficult to know what method will be more effective for each piece of property.
The other plants that are around it, where the property is located and more is going to play a big role in whether or not each method will work. Some plants are very sensitive to chemicals so it will be important that people are careful where they are spraying it. Every method will be a different fee.
Professionals that use the different effective removal methods of the Japanese Knotweed will have a good idea of what they need to do. There are not any methods that are going to be a hundred percent effective for anyone. It is important for people to realize that they may have to retreat their property again the next year.