Japanese Knotweed Management & eradication at former hotel site
Site Background & History
The site is located in the grounds of the former Mount Hotel in Clent, West Midlands.
Part of the site is blighted by the presence of clumps Japanese Knotweed.
The site is being developed for residential purposes comprising of houses and flatted accommodation incorporating part of the exiting Mount Hotel.
Envirotreat undertook a site assessment in December 2013 and produced a Japanese Knotweed Management Plan for its removal / eradication, including an action plan designed to fit the timeframes and requirements of the client.
Envirotreat identified two distinct areas of JKW based on evidence of canes. One area being relativity small and possibility the result of a single plant and further, larger area approx. 20 m by 10 m with more established plants.
Remediation Works
In January 2014, based on the agreed Japanese Knotweed Management Plan, Envirotreat undertook a managed dig operation to remove the bulk of the JKW offsite. In total approx. 50 tonnes of soil was removed offsite.
In accordance with the Japanese Knotweed Management Plan, Envirotreat revisited site during the active growing period to re-assess the extent of any regrowth.
A review of the site indicated a significant reduction of the presence of Japanese Knotweed plants in those areas where the excavations had taken place. The plants that were present were small.
Further management / eradication included spraying with herbicide (icade) to fully eradicate regrowth noted during the growing season.
