"al" wrote in message
There was an interesting story on BBC1's Countryfile today, with John
Craven looking at alternative methods of controlling Japanese Knotweed in
Cornwall.
Methods such as 'bio control' eg. introducing diseases to attack Japanese
Knotweed.

The programme showed footage of someone cutting knotweed and pouring a
herbicide
down the stems. What type of herbicide would be suitable for Japanese
Knotweed ?


I understand the National Trust in Cornwall are using the "cut stem and pour
SBK Brushkiller (or similar) down each one" method. It travels down to the
roots, possibly 3 metres down, and kills them without causing too much
collateral damage. For a normal person that is probably the only method
there is to kill off this plant, some of the professional weed control
companies have sprays that seem to work too, although I don't know if it's
so permanent.


--
Bob

www.pooleygreengrowers.org.uk/ about an Allotment site in
Runnymede fighting for it's existence.