Dear Mr Shaw
Many thanks for your enquiry regarding Japanese Knotweed.
I have attached a link to an Environment Agency leaflet which gives lots
of information about JK and also how to treat it. Do you know the Scout
people – are you able to pass this onto them?
http://publications.environment-agency.gov.uk/pdf/GEHO0410BSBR-e-e.pdf
If at all possible it is better to get contractors to treat it however
it can be done yourself, the chemical which you use has clear
instructions on how to apply it.
If you need anything else please do not hesitate to contact me
Best wishes
The Ecology Hunter
Mondays, Tuesdays and Thursdays
London Borough of Knotweed upon Thames