Himalayan balsam, a non-native species, outcompetes native plants on riverbanks, reducing biodiversity. The "balsam-bashing" event, organised by the Lincolnshire Chalk Streams Project, aims to ...

An appeal has been made for volunteers to help clear Himalayan Balsam from a site owned by the Woodland Trust. The plant is considered an invasive species in the UK and has taken hold across the ...