New research has revealed the damaging impact of Himalayan balsam on river ecosystems. Originally an ornamental plant, Himalayan balsam began spreading rapidly into the wild and flourished along riverbanks and damp areas. Vegetation survey being carried out as part of the team's research into the effects of Himalayan balsam on riverbanks. Together, the field data and modelling approach enabled the team to quantify, for the first time, the indirect effects of Himalayan balsam on winter riverbank strength. “Our work provides the first evidence that the impact of Himalayan balsam on the riverbank is not just about dieback.

Source: Irish Examiner January 12, 2026 10:26 UTC