Japanese Knot Weed

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Unfortunately I have this weed growing in my garden.  I have found the following sites helpful in providing information to combat this pest.  I am also in the process of destroying this weed by frequently cutting it back. 

Japanese Knot Weed  (Reynoutria japonica) goes by other names-

Donkey or Gypsy rhubarb, Mexican bamboo, Japanese bamboo, Japanese Fleece Flower.

The Cornwall Knotweed Forum

TIMBREL (Weed Killer)  A systemic brushwood and scrub killer. It controls many notorious plants & weeds such as
Rhododendron, Japanese Knot Weed, brambles and many other woody weeds. Contains Triclopyr.

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