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Japanese Knotweed
Japanese Knotweed (Fallopia japonica)

Invasive Plant Species

There are several non-native invasive plant species found in the British Isles and these can often be very time consuming and expensive to eradicate, so it is crucial that they are identified as early as possible. Invasive species include; Japanese knotweed (Fallopia japonica) giant hogweed (Heracleum mantegazzianum) and Himalayan balsam (Impatiens glandulifera). The most commonly encountered during development is Japanese knotweed. We are able to carry out surveys that identify invasive plant species most commonly encountered including Japanese knotweed, and are able to advise on eradication methods and legislative context.

In all cases we routinely endeavour to identify and map the extent of invasive species at a site during an Extended phase 1 habitat survey unless a specific invasive weed survey is required.