japanese knotweed course

Japanese Knotweed and Development Sites

Japanese knotweed (Fallopia japonica) can grow through the smallest cracks in tarmac, paving and building structures. It can grow through and break them apart, causing damage to property and infrastructure. It can rapidly and easily spread to other areas if its root fragments and rhizomes are disturbed. It is frequently spread to new areas by plant machinery and can grow from tiny root fragments.

Invasive species cost the UK economy £1.7 billion each year. Many non-native species cause no harm, and some are even highly beneficial to insects but others can dominate our native flora and seriously affect our biodiversity and the economy.

Laws, such as the Weeds Act 1959, the Wildlife and Countryside Act 1981 and the Environmental Protection (Duty of Care) Regulations 1991 are designed to help control the spread of certain invasive plants such as Japanese knotweed. Although it is not an offence to have this species growing on your land, it is an offence to allow it to spread outside the site boundaries.

Want to Learn more?

We are running a Japanese Knotweed Ecology and Control course on September 11th 2013.

Want to commission an invasive species survey?

Our experienced ecologists regularly undertake surveys of invasive plants and animals. For more information about the Ecology Services, we can offer, call us on 029 2065 0331, contact us on info@acerecology.co.uk or click here for examples of our work.