Do Knot - cut, weed whack or mow knotweed.
Knotweed is spread largely by small plant fragments so these activities turn one plant into thousands.

Do Knot - dig out large infestations.
Knotweed roots can go as much as 3m deep and are extensive. Any tiny root fragment left behind can result in further growth.

Do Knot - put any knotweed parts in your home composter.
Knotweed cannot be reliably “cooked” by your home composter. If you must cut it, put it in your green waste for pick up so it can be commercially composted by professionals.