It’s spring – the growing season. We take a look at Himalayan balsam (Impatiens glandulifera), one of the UK’s most invasive and problematic weed species, and the work CABI is doing to combat its spread. Why is Himalayan balsam such a big problem? Colonising rail and river banks, wastelands and woodlands, Himalayan balsam was introduced…

via Controlling Himalayan balsam, one of the UK’s most invasive weeds — The Invasives Blog