In a fit of excitement hayley uttered:

what's the best (if any) way to get rid of this quickly please? TIA
Hayley

Small clumps can be carefully dug up, making every attempt to remove all
sections of the rhizomes. Even small sections can serve as propagules for
another generation of plants. Continued monitoring is necessary, after
removal, to ensure that any new shoots arising from missed portions of the
rootstock are subsequently also removed. When clumps have become sizeable
it is futile to attempt to dig up plants. Yoiu will miss sections of
rhizome. The best means of control is through repetitive cutting of the
stems near the soil surface with the addition of spot application of a
systemic biodegradable herbicide like glyphosate (e.g., Roundup, Rodeo;
only the latter is approved for use near water). If no herbicide is
applied, the act of cutting the stems near the ground during the early to
mid part of the growing season results in depleting the food reserves
stored in the rhizomes that are necessary to produce new aerial shoots.
Several cuttings would likely be required during a single season followed
by a similar treatment the following and perhaps subsequent years until no
new shoots appear. The application of glyphosate by painting the cut stems
with the herbicide is likely to be more effective and a more rapid means of
eliminating the underground portions of the plant. Glyphosate can also be
sprayed on the entire plant, taking appropriate precautions in applying the
herbicide for personal health reasons and also to minimize spraying other
desirable plants.

Glyphosate is a non-selective herbicide so BE CAREFUL !!

plagurised & edited from:
http://www.angelfire.com/journal/ggb...RPKnotweed.htm

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