Japanese Knotweed is a fast spreading weed that emerges in the spring/summer months. The growth of this weed can stop growth of any other surrounding plants.
The effect that Japanese Knotweed can have can be terrible, it can grow up to 4m in height and its roots, 3m deep, 7m wide and has the capability to grow into bricks and building structures.
Therefore it is extremely difficult to get rid of, frequently requiring chemicals as opposed to manual removal. Often professional removal is required, which is a costly service.
RHS advise that an alternative to disposing of Japanese knotweed at a registered landfill would be to allow it to dry out and burn it. Contained incineration is one of the only reliable methods of disposal and would ensure no surviving roots remain in the ground following burning.
Finally, the legal implications of not properly controlling the disposal of Japanese Knotweed are vast and the responsibility for controlling it comes down to the landowner. If an individual is unable to control the spread of this invasive weed into the wild, they could receive a fine of up to £5,000, and a custodial sentence. Therefore, having complete control of the full process would be beneficial to ensure the risk of spreading is eradicated.
For more information on this invasive plant:https://www.rhs.org.uk/advice/profile?pid=218https://www.phsgreenleaf.co.uk/how-to-identify-treat-and-stop-japanese-knotweed-spreading-in-your-garden/