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By far the cheapest and most effective treatment for the removal of Knotweed is Safe Chemical Control.
Originally native to Korea, China and Japan; once introduced into Europe Japanese Knotweed has been very “successful” in spreading quickly to cover large areas particularly canals, railway sidings and levees. Stems can emerge through concrete and tarmac with apparent ease which highlights the serious damage it can do to buildings. The plant is adaptable; tolerating various types of soils and appears to have a high tolerance for acidity alkalinity and salinity. In short it grows just about anywhere. Frost appears to damage the above surface stem and leaves but the rhizome or root system survives.
Japanese Knotweed has a hollow stem with a bamboo like appearance. The plant can grow to heights of 3-4 metres and spreads at an alarming rate through its underground rhizome system. The leaves are spade shaped and produce chains of white flowers/seeds. This makes the appearance of Japanese Knotweed quite attractive therefore misleading many home owners to its very real dangers.
The plant has a thick cuticle like skin on the leaf. The seeds are sterile so spreads by developing a large network of rhizome which spreads meters in length, travelling underground and appearing up to distances of 6-7 metres away from the originating spot.
The plant is classified as a non-native, invasive species in the UK and can cause serious damage to brickwork and concrete of drains and buildings. Land owners have a legal obligation to control Knotweed on their land.
Control has to be focused on the rhizome system in order to defeat this plant as it resistant to cutting down, coming back even stronger. We have a great track record in controlling Japanese knotweed – successfully eradicating many infestations over the years. It is unnecessary to spend significant amounts of money having the plant excavated. This and other extreme methods are much more expensive than having a cost effective treatment programme put in to place.
Japanese Knotweed Damage:
- Weakening of house and building foundations
- Integral damage of road, pathways and paved areas
- Damage to free standing structures such as walls and pillars
- Destruction of native wild life habitats
- Unseen damage to underground pipes, drains and ducting
Dos and Don'ts
- Cut and remove Japanese Knotweed to other non-specified areas yourself. IT WILL SPREAD
- Use strimmers or hedge cutters. IT WILL SPREAD.
- Attempt to burn Japanese Knotweed unless completely dried out. It loves to fly and IT WILL SPREAD
- Attempt to remove Japanese Knotweed from river and stream banks. Water is one of its favourite modes of transport.
- Use unlicensed chemicals or herbicides either near water or other plants, grasses or wildlife. You’ll be breaking the law and may kill everything BUT the Knotweed.
- Check regularly for the appearance of Knotweed shoots, especially if you live near a waterway.
- Call us for advice on the correct treatment and disposal of the Japanese Knotweed.
- Treat Knotweed immediately. The sooner we can catch it, the less chance it will spread and the lower the cost or eradicating it.
- Try to isolate the Knotweed before treatment and avoid disturbing the soil around the plant (disturbing the soil encourages growth.)