Knotweed can grow at a rate of 10cm per day in the summer Back in the nineteenth century, when Victorian engineers were designing the latest in transport technology, Japanese knotweed sounded like ...

The world's largest field trial on the control of Japanese knotweed, conducted in Wales, has found that eradicating the plant is not possible. Researchers from Swansea University have carried out ...

The forest behind our house has turned into a horror movie, starring an armada of non-native invasive weeds. Their evil, ...