Geotechnical and
Environmental Services

Specialists in the investigation, assessment and reclamation
of development land.


Simple but effective if time is available

Japanese Knotweed can only be controlled by spraying with herbicide not eradicated, but this lack of future growth can be achieved if sufficient time is available i.e two to three growing seasons.  The technique is very useful if used in conjunction with other control measures.  Our in house team can visit site to deliver the spraying programme.

A word of caution, BRD are aware of some knotweed eradication companies offering ‘magic bullet’ spraying solution.  By effectively over dosing the plant with spray you can achieve apparently dramatic die back results, but all that has really happened is that toxic shock has forced the plant in to going dormant only to reappear in a couple of years.