Japanese KnotweedJuly 6th, 2018
Intro and Links
The sites are situated on the Cornish (western) bank of the River Tamar, 500 meters west and 700 metres north-east of O.S. Grid Ref: 452690. There were initially three growths along the river bank (map to follow).
It is difficult removing the roots of Japanese Knotweed as the roots can reach a depth of 7 metres.
Each remaining piece of root or rhizome, as small as 1cm, can produce new growth.
The world's largest field trial on the control of Japanese knotweed, conducted in Wales, has found that eradicating the plant is not possible. Researchers from Swansea University . . . say . . . working with the plant's biology produces the best results.
- Original info :: old website.
- Data for years 2002 to 2010
- Data for years 2007 to 2013
- Data for years, 2012 to 2018
Legal issues and cases: