Disposing of Japanese Knotweed irresponsibly or fly-tipping is illegal as Japanese Knotweed MUST be disposed of at a licensed landfill site. As mentioned, the smallest piece of rhizome the size of a fingernail can cause new growth. By allowing Japanese Knotweed to spread in this manner is illegal.
If your Japanese Knotweed is growing by a watercourse or source of water, it is even more important to follow the necessary guidelines and have the qualifications to treat it. A small piece of the plant can be taken downstream, settling and allowing a new growth of Japanese Knotweed to occur! It is also important when treating Japanese Knotweed near a water source to use the correct treatment method. If a herbicide treatment is being used on the Japanese Knotweed, the water mustn’t be contaminated by the herbicide. Therefore, injection of the herbicide is used, ensuring the plant is effectively treated, but the water is not contaminated.
There are several methods for Japanese Knotweed removal in Middle Quinton, these include: