Herbicide Treatment – A systemic translocating herbicide is used, this can either be injected or sprayed on the Japanese Knotweed outbreak. Sometimes a combination of both injection and spraying is used. This is the least costly and most common method of treatment.
Excavation and removal – The Japanese Knotweed is excavated from the site, ensuring that the area/s are dug down deep enough to fully remove the roots. It is then safely removed from the site to a licenced waste site. This method is quite costly, however, it is often used when building work is being completed on-site and fast and effective removal is required.
Permanent Burial – This method is also commonly used when there are time constraints, however, the dumping costs are not involved. The Japanese Knotweed infested area is excavated with the soil being sifted removing the main stands. The excavated area is then lined with a root barrier membrane and the contaminated soil is then placed in this root barrier, ensuring it is fully encapsulated.
Combined Treatment Methods – As the name may suggest is a combination of various methods to ensure eradication of the Japanese Knotweed.
