Should knotweed begin to pop up in your setting, it can compromise the otherwise resistant surface areas of naturally-
occurring or man-made objects which are of vital importance.
Items under threat from knotweed include flood defences, as well as sites of historical/archaeological interest, as well as raising aesthetical issues and reductions in land values where Japanese knotweed arises. Then there’s the impact on insects and wildlife to consider, which suffice to say, the ever-expanding network of Japanese knotweed doesn’t.
We’re talking about those that rely on plants and vegetation native to Britain which are under threat from this unprecedented Japanese knotweed invasion, which also poses serious dangers in the field of biodiversity, courtesy of casting dramatic shadows over a range of flora and fauna. Then, and possibly most important for home and/or business owners, there’s the tangible financial risk to homes and businesses which can come with the Japanese knotweed territory.
It’s not unheard of for mortgages to have been refused on the grounds of the substantial presence of Japanese knotweed in the immediate surroundings of the property, or for thousands of pounds of damage to be caused to a home, whilst elsewhere local authorities are now perfectly within their rights to put a halt to the granting of planning permissions then and there should Japanese knotweed be deemed to be a significant factor in the location!
This stance is likely to remain in place until the perceived threat of the plant is eradicated. With direct reference to legality, under the Environmental Protection Act 1990, Japanese knotweed is legislatively confirmed as a ‘controlled waste’. By which it’s a stipulation that the weed is duly disposed of at licensed landfill sites. In the event of it being allocated to normal household waste, under the guidelines set out in Section 9 of the Wildlife and Countryside Act 1981, it’s an offence to ‘cause or allow the plant to spread in the wild’.