Tag: hotspot
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Heatmap reveals area that is the biggest Japanese knotweed hotspot in the UK
The latest Japanese Knotweed Heatmap from Environet shows Bristol as the area with the highest concentration of identified Japanese knotweed sightings in England, with an astonishing 33.91 verified cases per square mile – far above any other English region. In Wales, Newport tops the 2025 list with nearly 24 incidences per square mile, while data…