Is Japanese knotweed dangerous? And as Japanese knotweed is classed as “controlled waste” under the Environmental Protection Act 1990, both vegetation and soil must disposal at licensed landfill sites. By minimising the amount of controlled waste, we’re actively helping to reduce landfill levels. Only registered waste carriers should transport this material and relevant insurance policies should be in place. Early detection and treatment of Japanese knotweed infestations is of paramount importance if remediation costs are to be kept to a minimum. If your municipality has a high-heat compost program, plants can be sent there. WHAT DOES JAPANESE KNOTWEED LOOK LIKE? There are three ways to get rid of Japanese Knotweed; each has their pros and cons, and prices vary. The act stipulates that Japanese Knotweed can only be disposed of at landfills that are licensed to handle contaminated soil. Whilst the landfill site is closed, it is in the interest of the property owner to control and manage Japanese knotweed on their land. Sometimes, though, the properties attacked by Japanese knotweed are brand new. As of the 2014 order People who fail to control the spread of invasive non-native plants such as Japanese Knotweed could be fined or receive anti-social behaviour orders. ... cause the spread of Japanese knotweed and all waste which contains Japanese knotweed has to be disposed of at a licensed landfill site. Under no circumstances can you dispose of Japanese Knotweed in your compost, recycling, or waste bins, due to its fast spreading and growing nature. Japanese Knotweed (Reynoutria japonica) ... Do not compost viable plant material at home or send to landfill. Japanese Knotweed waste is classed as “controlled waste” and must be disposed of in line with the Duty of Care Regulations 1991 under the Environmental Protection Act 1990. • It is listed under schedule 9 of the Wildlife and Countryside Act 1981 and it is an offence to plant or cause this species to grow in the wild. Our landfill resources in the UK are dwindling and there are an increasingly limited number of landfills that will take Japanese knotweed material. 4. Japanese Knotweed is also a controlled waste material and therefore must be disposed of via approved landfill sites only. As we have mentioned above, disposing of Japanese knotweed at a licenced landfill is the easiest way to make sure you are staying within the law. Known for its destructive capabilities, the Japanese knotweed is an invasive plant which can severely damage buildings and construction sites if left unchecked. Removal to landfill: This method completely removes Japanese Knotweed material from site and is very quick to implement. And merely dumping it in the trash or into a landfill site is strictly forbidden. Southwest Knotweed started its journey in 2011, 1st treating Japanese Knotweed in Cornwall and then, soon expanding across the South West, covering Devon, Somerset and Cornwall, offering bespoke solutions within the Invasive Weed Industry. The time it takes to get rid of Japanese knotweed depends on the size of the infestation and the techniques used to combat it. Japanese knotweed is a weed that can grow to over two metres high and spread rapidly. Site Capping removes knotweed to the construction foundation level*, minimising the depth of excavation and the resulting volume of waste. Why is knotweed a problem? Companies building new houses will have to be creative with how they deal with contaminated land and be fully up to speed with ALL strategies available to them for dealing with Japanese Knotweed. It is illegal to dispose of Japanese knotweed at a landfill site without informing the landfill site that the waste material is Japanese knotweed. Dispose of Japanese knotweed waste off-site. • Plant material is a ‘controlled waste’ under the Environmental Protection Act 1990. What Is Japanese Knotweed? Do an Internet search to find out the rules regarding Japanese knotweed disposal … However, as the Japanese knotweed spreads rapidly, it can be a severe problem for homeowners. Japanese Knotweed Burial On-site. Read our Japanese Knotweed FAQs to find out more about this invasive plant. Reduced landfill volumes. To move soil in the Republic of Ireland that contains Japanese knotweed will require a license from NPWS. This may involve either burying the waste on-site or removing it to a specialist landfill. There are several approaches you can use to get rid of this plant, and it sometimes requires multiple attacks for complete eradication. Cut Knotweed material and soils contain rhizomes must be disposed of as a controlled waste if they are to be removed from their site. Our site surveys identify and record the knotweed problem and accurately assess the risk category in accordance with the Royal Institute of Chartered Surveyors (RICS) guidelines. Japanese Knotweed Ltd was asked to assess a closed landfill site that had a large infestation of Japanese knotweed. We’ll reveal all below. Japanese Knotweed Site Survey. This will also ensure that any contractors on-site will treat Japanese knotweed appropriately. • Japanese knotweed - 1.5 m to 2.5 m tall, multiple branches, mottled purple/brown • Giantknotweed-3 mto6 tall,fewornobranches, mottled purple/brown • Himalayanknotweed-2 mto3 tall,branchedat upper half, reddish in color Rhizomes: At maturity, rhizomes are thick and woody, and can spread up to 20 m laterally. Fallopia japonica, Reynoutria japonica and Polygonum cuspidatum, aka Japanese Knotweed is a rhizomatous perennial plant. We specialise in the removal and disposal of Japanese Knotweed from construction sites or any site that is being developed or remediated. As well as harming the environment, Japanese Knotweed is able to grow through the smallest gaps in walls, pavements and structural foundations of buildings. You must use a registered waste carrier and authorised landfill/disposal site if removed off site. As part of buying, selling or re-mortgaging a property you may be required to undertake a Japanese knotweed survey. With its red stems and deep green leaves, it’s not deemed an unattractive plant. Japanese Knotweed is one of the most common and problematic invasive weeds in the UK today due to its resilience, rapid growth rate and difficulty to fully remove. Japanese Knotweed identification. Contact a Japanese knotweed specialist. 5. The problem with Japanese Knotweed is that it can sprout from as little as 2mm of rhizome, meaning it is classed as “controlled waste” under the Environmental Protection Act of 1990 and must only be disposed of into licensed landfill sites to stop further spread. Alternatively, solarize viable plant material by placing it in sealed black plastic bags and leaving them in direct sunlight for 1-3 weeks. Japanese knotweed is so tenacious that it has been known to grow through solid masonry foundations. Not all landfill sites are able to take Japanese knotweed contaminated material, which is regulated under Part 2 of the environmental Protection Act 1990 and the Hazard Waste Regulations 2005. On-site burial. But what’s the cost of removing Japanese knotweed? • Japanese knotweed (Fallopia japonica) is an invasive plant that can cause damage to property, and is very difficult to control once established. 6. Japanese knotweed can also be burnt as a method of eradication – if the waste belongs to a business rather than a private individual, the EA and local Environmental Health Officer must be notified at least a week in advance (.GOV.UK, 2017). Because Japanese knotweed is classified as “controlled waste” by the 1990 Environmental Protection Act, many places, like the United Kingdom, require you to dispose of it at a licensed landfill site. You should also call the landfill before you transport the waste, as it must have the correct environmental permit to deal with the knotweed. This is ideal where no construction work has begun and the site can be fully excavated to make a hole deep enough to contain the Japanese Knotweed. The individual or organisation that has collected the knotweed is responsible for identifying a licensed landfill and transporting the knotweed to the licensed handler. Minimised excavation . Any attempts to remove Knotweed should therefore be carried out by licensed professionals. When we are called to site where Japanese Knotweed has been fly-tipped we work with the landowner to remove the problem. Environet has filed a patent application for the method and apparatus used to convert Japanese knotweed waste into biochar, thereby locking in carbon and eliminating the need for landfill. How long does it take to get rid of Japanese knotweed? With knotweed (and soil containing knotweed) being classed as a controlled waste, it has very specific conditions under which it needs to be disposed of and only landfills with sufficient space will be able to comply with them. A survey can safeguard a buyer who wishes to purchase a development site. Changes in legislation will I’m sure eventually lead to a refusal to accept Japanese Knotweed at landfill sites …and I’m sure this is on the current horizon. This is then removed to an environment agency approved disposal site. Indeed, the Wildlife and Countryside Act of 1981 decrees that planting or dumping knotweed in the wild is an offense punishable by a fine or imprisonment. In Northern Ireland it is illegal to dispose of Japanese knotweed, or knotweed contaminated soil, at a landfill site without informing the landfill site that the waste material is Japanese knotweed. The location of the burial pit must be marked accurately on site plans so that it is not accidentally disturbed by any future works. A Japanese knotweed site survey and remediation options appraisal is essential in determining accurate development costs for a site. The vast majority of Japanese knotweed waste currently ends up in landfill sites where it rots, producing damaging landfill gases such as carbon dioxide and methane. Japanese Knotweed A Brief History of an Invasive Weed – What is it? The following points should help you through this process. Knotweed species in the region include: Japanese (Fallopia japonica), Bohemian (F. x Bohemicum), Giant (F. sachalinensis) and Himalayan (Persicaria wallichii). Delays can be very costly. If you have it growing in your garden, you’ll want to get it removed as soon as you can. Excavation of Japanese knotweed and removal of wastes to a landfill site is a frequent option where time and space don’t allow other treatment strategies. • grows up to 3 m tall and can grow in dense patches • hollow stems with purple and red speckles • heart-shaped leaves, 3-10 cm long • clusters of small, greenish-white flowers in sprays along the stems • roots extend 3 m deep and 14 m or more from the plant WHY IS KNOTWEED BAD? Previous Environment Agency guidelines stated that excavation of Japanese knotweed should be undertaken within a 7 metre zone around plants and to a depth of 3 metres. The waste can either be sent to landfill or buried on site. Japanese Knotweed and contaminated soil can also be buried on site inside a heat sealed plastic membrane. We have a team of highly qualified staff, who will be more than happy to discuss the process and options of dealing with Japanese Knotweed. Burial pits should not be located under proposed buildings. ... you must use a registered waste carrier to transport your contaminated soil to a licensed landfill site. It is classed as ‘controlled waste’ under the Environmental Protection Act 1990 and requires disposal by a licensed waste carrier, who will ensure it is disposed of at a licensed landfill site. Article 34. The local environment agency should be notified with the intention to bury Japanese Knotweed 7 days in advance. Site Capping is a fast way to eradicate Japanese Knotweed while keeping volumes of waste to a minimum. You are only allowed to bury knotweed at authorised landfill sites, you are also required to call in advance to give them time to prepare. Get in touch for legal help! In Northern Ireland, Waste Transfer Notes are required by the licensed haulier to transport the material to the landfill site. Japanese knotweed can regenerate from very small fragments of rhizome (as little as 0.7 grams). 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