Japanese knotweed is a highly-invasive plant, growing so quickly it outcompetes others wherever it takes root.

Landowners who fail to keep it under control risk serious fines, as Transport for Wales found out earlier this year.

A Japanese knotweed management plan (JKMP) is a document that details the extent and severity of a Japanese knotweed infestation, assesses risk, and lays out a recommended strategy for treatment or removal of the plant.

When buying or selling a property that's affected by Japanese knotweed, it is common for lenders to demand a JKMP from a qualified specialist.