If you want more information on how to treat Japanese knotweed contact us on 0808 231 9218 or click the button bellow to contact us online. Japanese Knotweed is the scourge of house buyers, sellers and construction companies. Our expert Bernard says, “It can seriously damage foundations, which is why mortgage companies don’t like it. With a simple click of the button, you will be able to easily check on individual site details, access receipts, receive quotes and view inspection reports at any time without ever having to call the office. Wait to Remove Sprayed Weeds. Making a positive identification of Japanese knotweed is crucial before considering investing time or money into any removal process. If you need to treat a large area, some of the plants will need to be cut down to gain access. You do not have to report the presence of Japanese Knotweed within your property, but you should declare it to estate agents and prospective buyers. If you spot Japanese knotweed, we recommend leaving it undisturbed, and getting in touch with us to confirm your diagnosis and make a start on the removal and management process. This field is for validation purposes and should be left unchanged. Japanese knotweed can be mistakenly identified as other similar plants, such as Russian vine or Himalayan Honeysuckle, but it can cause a lot more damage than these plants. David Beaulieu. This involves repeat spray applications to the foliage or stem injection. Once completed, the remaining soil, which is eradicated of knotweed, can be used on-site as backfill or in gardens and landscaped areas. Privacy Policy. The landed gentry loved it as it has stems like bamboo, so looked Oriental.”. Excavation is the fastest Japanese knotweed removal process, but it is also much more expensive than a herbicide treatment. Should you choose not to, a buyer could sue you under the Misrepresentation Act. • If you are a developer or have commercial land that contains Japanese Knotweed, contact one of our experts today. This is the period in which the plant is flowering and so the foliage conducts … Successful eradication of Japanese knotweed can be achieved through a three-part process of removal, disposal, and re-vegetation. If diluting, do so over a dry sandy or gravel area. They are effective but each type has its drawbacks. Landfill sites charge a high price as they need a separate area to control its growth. After being celebrated in the late 19th century, the Royal Botanic Gardens in Edinburgh began selling it and it became a favourite in large country estates. Our process includes cutting down the knotweed and excavating the roots. We have been removing Japanese Knotweed since 1982! At ATG Group, we are passionate about finding sustainable answers to environmental issues. This process involves injecting a specified dose of undiluted herbicide directly in to the stems of the plant, between the first and third ‘node’ of … Cookie Policy. For full details of the process, visit our Japanese Knotweed page. While it is not illegal to have Japanese Knotweed in your garden, you should control it. The leaves are heart or shovel-shaped and up to 5.5in (14cm) in length and appear in a zig-zag pattern along the stems. Web Design by Bag of Bees. Tradespeople comparison site HaMuch.com revealed earlier this year that if the perennial weed is found when a house is being sold, it can reduce the value by £23,530 on average! Different types of Japanese Knotweed treatment — . For full details of the process, visit our Japanese Knotweed page. It can also reduce the value of houses by thousands. Our Japanese Knotweed removal specialists use the system to provide you with real-time minute by minute updates, so you can always be informed with progress and status. Bernard says that its stems look like rhubarb in colour. We are open with our teams continuing to follow Government recommendations whilst completing treatments throughout London. Like asbestos, it is a contaminate so it and the soil it … The other issue is that the Japanese Knotweed remains on site. David Beaulieu is a garden writer with nearly 20 years experience writing about landscaping and over 10 years experience working in nurseries. Less risky to the environment, as the injected herbicide has no effect on the surrounding vegetation and is also safe to use near water, stem injection is a more effective eradication method. From here it travels down to the root system. Because Japanese Knotweed is known to be so difficult to fully eradicate, in some states mortgage lenders require homeowners to declare its presence on a property when selling the home. Roundup, Gallup, Landmaster, Pondmaster, Ranger, Rodeo, and Touchdown are all herbicides recommended to kill Japanese Knotweed. We’ve been closely monitoring Government health advice relating to the spread of coronavirus. This plant has a number of key identifying features including broad, shield-shaped green leaves and hollow, bamboo-like canes [2]. If a survey reveals Japanese knotweed on a home that you are planning on buying then you should be able to negotiate a lower price as a result. Because each Japanese Knotweed infestation is unique, we’ll send one of our experts round at a time convenient to you, to carry out a free, detailed inspection and give you some advice. The excavated infested soils undergo a screening process in the Xtract™ machine to separate the Japanese knotweed rhizome from the soil using our patented technology. The surrounding and transportation area is fully protected during the process using geotextile membranes to ensure no further site contamiination. The Strategic Environmental Assessment (SEA) Process. Japanese Knotweed Removal Tips And Why It Is Important to Get Rid of "Fleeceflower" Written by. Pin Share Using this method is not a quick way to remove Japanese knotweed plants, as it takes approximately 3 to 5 years. Legally, you must prevent Japanese knotweed on your land from spreading into the wild and causing a nuisance. David Beaulieu. Our Japanese Knotweed Management plans include detailed explanations of the different treatment or removal methods that we can provide. If you identify Japanese Knotweed on your property, you are in for a difficult and lengthy process to fully remove and kill the plant. Our Japanese Knotweed expert, Bernard Mullen, explains, “With its ornamental good looks it became popular in country houses, where you often still find it. We use approved chemicals to treat the remaining knotweed in the soil. By Paolo Martini on 18th February 2020 (updated: 16th July 2020) in News. We screen the soil and handpick the biggest roots, which are suitably disposed of. With limited space available, they need to charge a premium. ‘Dig and bury’ on site is another popular method, but while it is effective at removing the weed it restricts the use of available land for development. For construction companies, the discovery of Japanese knotweed can add a massive cost to their projects. Traditional ‘dig and dump’ methods impact the environment and are costly as hundreds of tonnes of earth is shifted. We visit for a free site inspection. Japanese Knotweed Management Plan. It is in everyone’s best interest, therefore, to deal with removal of Japanese Knotweed effectively and sustainably. Developers who fail to contain the plant on their site could also find themselves prosecuted under the Wildlife and Countryside Act 1981 or the Environmental Protection Act 1990. However, eradication becomes more difficult as the size of the area covered by plants increases. We continue to offer Japanese Knotweed advice and management plans, if you need help and advice please get in touch. No infestation of Japanese Knotweed is … Less risky to the environment, as the injected herbicide has no effect on the surrounding vegetation and is also safe to use near water, stem injection an effective eradication method. Japanese knotweed absorbs the glyphosate into the rhizome with a faster absorbency rate than that of foliar spraying. Updated 06/23/19. It won’t pull the house down, but it will eventually create a problem with the foundations if left untreated.”. For an on-site excavation with root barriers put in place to prevent the growth, you would be looking at paying around £1750-£4950 for the work to … At ATG Group, we have developed our Eraginate® Japanese Knotweed treatment which is more cost-efficient and quicker than ‘dig and dump’ and stem injection techniques. Any Japanese knotweed removal work that requires excavation and removal of infested soil and ground materials, will usually prove to be more costly than chemical methods. We have developed the Eraginate® process. We can offer an insurance-backed warranty for up to 10 years, so in the unlikely event of the weed returning, we will deal with it within that time. 2. The SEA Directive applies to a wide range of plans and programmes, including town and country planning and land use. They are all glyphosate-based herbicides and will kill the troublesome weed. Registered Office: Plaza Building, Lee High Road, SE13 5PT. Please note that these materials must remain on site. To help explain more about the issues surrounding this invasive species, we unravel the roots of Japanese Knotweed…. Depending on the circumstances, it may be in your interest to suggest that a Japanese knotweed survey is undertaken by professionals so that you can acquire an estimate for the cost of removal. Anti-social Behaviour Crime and Policing Act 2014. Japanese Knotweed Removal Training has a team of Contaminated Land & Invasive Species Experts delivering training in Ireland on the Control of all Invasive in particular Japanese Knotweed. Japanese Knotweed absorbs the glyphosate into the rhizome with a faster absorbency rate than that of foliar spraying. Japanese Knotweed Removal by Herbicide Injection . In spring, you will see reddish-purple shoots emerge from crimson buds at ground level. It’s growth is rapid and aggressive, as this Irish Times video shows! The biggest issue with the weed is that it can swamp other plants. We have a tried an trusted process to eradicate your knotweed problem, built with over 3 decades of experience. Our team has experience with liasing with Government Departments on the Island of Ireland. September 25, 2020 Why Should You Enlist An Expert Japanese Knotweed Removal Company Instead Of Doing It Yourself Removal of Knotweed.   This method is best to do in the spring to catch the plant at the start of its growing season. We spoke further about it with Nic Seal, the founder and MD of Environet, the Japanese knotweed removal firm, which uses eco-innovative technology to remove the weed from properties and premises. Failure to do so could result in prosecution under the Anti-social Behaviour Crime and Policing Act 2014. Although this is a far quicker method, it's more expensive and often results in a far larger portion of your yard getting destroyed in the process. Once completed, the remaining soil, which is eradicated of knotweed, can be used on-site as backfill or in gardens and landscaped areas. The best time to spray the leaves of Japanese Knotweed with herbicide is late summer or early autumn. Excavation of Japanese knotweed involves thoroughly digging the plant and its roots out from the ground with heavy machinery. Send us a photo of the problem. They also state the most suitable treatment or removal method for your individual case of Japanese Knotweed. … So, developers or homeowners may have to delay their plans until they are sure the weed has been dealt with. TP Knotweed’s stem injection system offers excellent results when you are looking to eradicate smaller concentrations of Knotweed around your home or garden. The creamy white flower tassels are produced in late summer and early autumn and can reach up to 6in (15cm). Commercial Japanese Knotweed Removal Contractors; What is Japanese Knotweed? If you are using Round up Concentrate Plus, use it straight. The most popular methods include ‘dig and dump’ and stem injection techniques. Environet, Japanese knotweed removal specialists, recommend a system whereby all parts of the plant are given a fatal dose of herbicide, killing the rhizome and preventing regrowth. We talked about the damage it can cause, and how his company has developed tech so that this pesky plant can be used to help, not hinder the environment. After you’ve used your herbicide, don’t pull the weeds immediately. Submit your photo now so we can confirm identification of Japanese Knotweed and get an idea of the scale of your knotweed problem. How to avoid Japanese knotweed in the first place. Another effective method is stem injection – but this can take around three years to work. Guide To Selling A Property With Japanese Knotweed. Like Japanese knotweed, roots from these trees can break through concrete and drainage pipes and if root networks are extensive, they can also damage retaining walls and foundations. To be fair, it isn’t going to create a Jack and the Beanstalk situation! Removing Japanese Knotweed is not as simple as digging it out and putting it in the bin as its disposal is a tightly controlled process. It is not only quick, it is more cost effective, which is why so many construction companies and developers choose it. Excavation: Digging out the deep-rooted plants offers a significantly quicker solution. Not only does the aggressive invasive species damage foundations, removal can be difficult. Step 1: Wearing appropriate safety gear, dilute the Cornerstone1:1 with water in a spray bottle. It could cost a developer thousands to dig and dump the affected soil, which also affects the environment. Add enough dye so you will be able to tell where you have treated. Botanist Phillipp von Siebold found the plant growing on the sides of volcanoes, where its growth is kept under control by the climate and regular deposits of ash. The Removal Process. And no matter which method is used, the process … We use approved chemicals to treat the remaining knotweed in the soil. The Government guidance website states that you must get rid of Japanese knotweed waste off-site by moving it to a disposal facility that's permitted, such as a landfill site that has the right environmental permit to handle the material. Without these impediments, it can grow unabated, which is what is happening in Britain. It can also grow through concrete and road asphalt. Covering Japanese knotweed with tarps suppresses the plant's growth and ultimately kills it. Using Tarps to Smother Japanese Knotweed . Commercial Japanese Knotweed Removal Contractors; What is Japanese Knotweed? LOOK AT OUR REVIEWS. Learn about The Spruce's Editorial Process. © ATG Group 2020. Clean processed soils are then immediately ready for re-use on site. So, for anyone considering DIY Japanese knotweed treatment, we have put together a list of "dos and do nots" to help you better understand the process of treating knotweed and the amount of work involved. 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