In 1996 Peter Scott Tree Care Limited was the first company to develop the concept of installing Root Barriers for the containment of Japanese Knotweed. The need for expensive excavation and transportation off site of Japaneses Knotweed infested soil prior to construction is no longer required. The Dendro-Scott Root Barrier is used in a variety of ways to contain Japanese Knotweed. Click here to download a copy of our brochure.

• Vertically to prevent the lateral development of Rhizomes and to protect drains and/or to prevent ingress from neighbouring sites.
• Horizontally to protect buildings and paved surfaces.
• A combination of the above methods
• To avoid the very expensive process of transportation to a licensed tip, contaminated soil (resulting from excavation to obtain formation levels) is retained within the site, re-buried in another location and totally sealed within a 'cell' created with the Dendro-Scott Root Barrier.
• Normally a development site infested with Japanese Knotweed is only available after 3-4 years due to the need to carry out a long-term Herbicidal control programme. Even after this period, research has shown that there is a high risk that re-emergence of Japanese Knotweed could occur once excavation commences. Installation of the Dendro-Scott Root Barrier makes a development site immediately availablefor use with no risk to structures, roads or drains.

The use of the Dendro-Scott Root Barrier system is recognised by the Environmental Agency as a solution to contain Japanese knotweed prior to construction.