Scottish Native Woods will resume its programme to control Invasive Non-Native Plants (INNPS) in Glenurquhart this year. The project is being extended to include other INNPS hotspots in the Lower Ness catchment. These include several populations of Himalayan balsam around Inverness.
Having tried a variety of control methods for balsam, we have found the most useful tool for the job is a Martindale 781 Slasher. It is a light hand-tool with a long reach ideal for difficult spots such as steep banks, and among woody vegetation. If it's kept sharp, it can be used to cut through scrub, nettles and brambles where balsam often hides.
More info at http://www.ralphmartindale.co.uk/