Japanese Knotweed Infestation, London
North London Homeowner approached TCM to help with eradication of Japanese knotweed in front garden.
Giant knotweed (Fallopia Sachalinensis) is a striking and very large plant forming stands of largely un-branched stems, bearing leaves up to 3 times larger than those of Japanese Knotweed. These are reminiscent of the foliage of the broad-leaved dock, Rumex Obtusifolius. The flowering of both male and female plants starts later than Japanese knotweed, and flowering is less prolific.
This plant is native to the island of Sakhalin to the north of Japan, and the remote island of Ullung-do between Japan and Korea.
Giant knotweed spreads by the extension of the rhizome system and is mainly dispersed by the transport of portions of rhizome to fresh sites. However, it has not shown the destructive competitiveness of Japanese Knotweed.
The role of true Giant knotweed seedlings in the spread of the plants in the UK has received little discussion, though it is likely to be insignificant. Substantial genetic diversity in the plants has been noted, though this is likely to have arisen through multiple introductions of the species from various parts of the native range, rather than through home-produced seedlings.
Giant knotweed’s true significance is as the main pollen parent of the hybrid, Fallopia X Bohemica, whose hybrid vigour may render it the greatest threat, so far, of all.
Do you have Japanese Knotweed? Has your buyer’s mortgage been refused? TCM supply eradication solutions for homeowners.
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Howard Downer, AKA Dr. Knotweed, has over 20 years of experience as an Environmental Consultant and is regarded by his peers as one of the most knowledgeable people in the Japanese knotweed industry.
Follow Dr. Knotweed to hear of about the latest developments regarding Japanese knotweed and the implications of infestation.
North London Homeowner approached TCM to help with eradication of Japanese knotweed in front garden.
TCM helped a homeowner wishing to sell his property but had Japanese knotweed in his garden.
Commercial property developers commissioned TCM to remove Japanese knotweed from site in Dorset.
TCM were commissioned by a Commercial company wishing to develop a brownfield site in Glasgow, Scotland.
