Japanese Knotweed Treatment and Control in Swansea by Specialists – South Wales Knotweed Removals
Do you know of knotweed at your property? Read online how this will probably set you back £1,000’s? Might it have an effect on your mortgage or ability to sell your own home? Please don’t fret! South Wales Knotweed Removal offers expert services for the treatment method and control of knotweed in Swansea, and be reassured it does not cost as much as you may think.
Japanese Knotweed is a perennial weed that will grow and spread rather quickly if not controlled. The weed suppresses all the other plant life growing close to it from the crown and rhizomes (root system) that spread extensively below the ground. The shoots die off above ground in the winter and re-emerge above ground again at the end of springtime, early summer. Any effectively established shoots can grow more than 9ft high and can colonise the soil within a few years. There are various articles that say you could eliminate the roots with chemical substances, however, you will need an NPTC qualified person to work with any chemicals as a result of new legislation which covers the management, and removal of Knotweed. There are several misconceptions that say you can remove Knotweed yourself, however, this is an extremely hard and intricate procedure and in most cases, not successful unless you make use of a knotweed expert. In the peak of the growing season, 60% of the Knotweed plant is its roots underground, so removal is incredibly difficult. Also, it spreads wildly from one tiny fragment of crown or rhizome. Removing Knotweed material without extensive knowledge has a very high chance of spreading the plant to other regions of the soil which were previously unaffected.
How do I eliminate Knotweed?
There are several methods of eliminating Knotweed and a Knotweed specialist will be able to give you advice on the best and most effective method.
Stem-Injection is usually a low impact approach to removal and there is little probability of disturbing or killing the plants growing close to it. The stem injection method is used for smaller areas of Knotweed where it has established itself amongst plants and vegetation that you want to keep. It’s also a technique normally applied when Knotweed is close to a watercourse. The stem injection approach works extremely well in dry or inclement weather conditions. The soil cannot be disturbed following the treatment.
Foliar Spray Application is often employed and is among the most favourable control strategies along with stem injection. The process can be used to manage the Knotweed over several growing seasons. Dependent upon the size of the area of Knotweed is it is frequently sprayed 2-3 times in the first year and once in the following years. The chemical used is an Environment Agency approved herbicide and requires dry weather, as well as the soil to remain undisturbed in subsequent years in order to work.
Weed Wiping Method is the leaves of the plant being wiped with a sponge which is soaked with the necessary herbicide. It’s a low impact treatment and doesn’t kill or bother the foliage adjoining it, however, its use is dependent upon how big the area of knotweed is.
Bund/Stockpiling Method is a blended treatment making use of stem-injection or foliar application, followed by digging up the underground material and removing the soil and materials to a different location where the emergence of ‘new shoots’ can be subjected to additional herbicide application. This approach can be used on sites where you need the removal of the knotweed to be fast and not done over several seasons so is, consequently, specifically good for building plots and development sites as work can proceed without delay.
Cell Burial/Root Barrier Method is a treatment used when there is adequate space on site to create a cell burial or utilising a root barrier to prevent the substantial costs of transporting the soil and waste to landfill. Cell burial buries the Knotweed waste to a minimum depth, or if encapsulated inside a geomembrane it can be closer to the surface of the ground. Root barriers can be installed both vertically and horizontally when there is a danger of cross-boundary contamination. Again, an approach most often used on development sites when building work needs to commence quickly.
Excavation & Removal Off-Site is a legitimate and fast control alternative which has its advantages for development sites if performed correctly, having said that, a lot of Knotweed experts aren’t advocates of it mainly because it raises considerable logistical complications. The challenges being it comes with a higher than normal chance of the Knotweed spreading and also the cost to securely transport the material to a designated landfill site. There is also a significant duty of care required under the Environmental Protection Act (EPA) 1990. In summary excavation and removal must only be used as an absolute last resort.
Is Knotweed Harmful to Dogs, Cats and People?
In simple terms, Japanese Knotweed isn’t poisonous or harmful to dogs, cats, humans or any other animals like some other very invasive plants. It’s not harmful to touch, however, always use extreme care when close to it to prevent inadvertently allowing it to spread.
Japanese Knotweed may possibly be known as ‘poisonous’ by developers and homeowners due to its highly invasive growth, ability to spread from any tiny particle left and how difficult it is to eliminate entirely.
Some Knotweed Misconceptions (several of which are exploited by some companies for financial gain)
- “It will grow through solid concrete”
- “It will destabilise foundations”
- “It will cause structural damage”
- Property affected by Japanese Knotweed is not mortgageable
Essentially, if the previous groundwork or construction has been performed to a satisfactory standard then Knotweed is not going to grow ‘through solid concrete’, it will not destabilise solid foundations and it is highly, highly unlikely to ‘cause’ architectural damage. In fact, these claims are misleading, to say the least, and in some cases, totally bogus.
Nonetheless, in certain situations, when the foundations or concrete are old, badly constructed and have pre-existing cracks or fractures within, then Knotweed will unquestionably make use of any weak point in its pursuit of light and water and will swiftly establish itself, whilst exacerbating the initial fracture and potentially cause the structure to disintegrate.
South Wales Knotweed Removal Specialists cover the whole of South Wales (including Swansea, Cardiff and Newport), West Wales up to North Ceredigion & Powys and throughout South Glamorgan & Gwent. In addition, we carry out contracts in the West Country, as far North as Shropshire and into the Midlands & Birmingham areas.
We are a fully qualified Japanese Knotweed Certificated Surveyor (JKCS), family run business. We specialise in managing Japanese Knotweed, other invasive plant species and ‘general nuisance weeds’ that are found in the United Kingdom for residential premises and property development sites.
We also offer tree services, such as pollarding, crowning, pruning, felling, through our NPTC chainsaw operators, all of whom possess a vast amount of practical experience in the forestry industry.
Our Qualifications& Accreditations include:
- City & Guilds NPTC Level2
- Principles of Safe Handling& Application of Pesticides (PA1/ PA6)
- Principles of Safe Handling& Application of Pesticides near water (PA6AW)
- Herbicide Stem Injection
- Property Care Association
- The Control& Eradication of Japanese Knotweed Surveyor’s Training Course
- Qualified Technician (PCAQT) in Japanese Knotweed
- Accredited Surveyor in Japanese Knotweed
Whilst there are several companies who operate within the UK weed control industry who will be respectable, knowledgeable and thorough professionals, you will find, regrettably, lots of companies who claim to have the experience, qualifications and accreditations to ‘eradicate’/eliminate’ Japanese Knotweed at a low cost. Nonetheless, we would advise anyone to exercise extreme caution and to make sure that the service provider/business you enlist to carry out the control programme are qualified to do so and they abide by the industry codes of practice.