How long does it take to get rid of Japanese knotweed? Is Japanese knotweed dangerous? 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. 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. The following points should help you through this process. Japanese knotweed can regenerate from very small fragments of rhizome (as little as 0.7 grams). If your municipality has a high-heat compost program, plants can be sent there. To move soil in the Republic of Ireland that contains Japanese knotweed will require a license from NPWS. 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. Dispose of Japanese knotweed waste off-site. Japanese Knotweed and contaminated soil can also be buried on site inside a heat sealed plastic membrane. The act stipulates that Japanese Knotweed can only be disposed of at landfills that are licensed to handle contaminated soil. But what’s the cost of removing Japanese knotweed? ... you must use a registered waste carrier to transport your contaminated soil to a licensed landfill site. Contact a Japanese knotweed specialist. As part of buying, selling or re-mortgaging a property you may be required to undertake a Japanese knotweed survey. 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. 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. Japanese Knotweed identification. 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. Alternatively, solarize viable plant material by placing it in sealed black plastic bags and leaving them in direct sunlight for 1-3 weeks. Fallopia japonica, Reynoutria japonica and Polygonum cuspidatum, aka Japanese Knotweed is a rhizomatous perennial plant. 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. There are several approaches you can use to get rid of this plant, and it sometimes requires multiple attacks for complete eradication. 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. This will also ensure that any contractors on-site will treat Japanese knotweed appropriately. 6. The time it takes to get rid of Japanese knotweed depends on the size of the infestation and the techniques used to combat it. Whilst the landfill site is closed, it is in the interest of the property owner to control and manage Japanese knotweed on their land. By minimising the amount of controlled waste, we’re actively helping to reduce landfill levels. Minimised excavation . Knotweed species in the region include: Japanese (Fallopia japonica), Bohemian (F. x Bohemicum), Giant (F. sachalinensis) and Himalayan (Persicaria wallichii). Our landfill resources in the UK are dwindling and there are an increasingly limited number of landfills that will take Japanese knotweed material. • 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? Under no circumstances can you dispose of Japanese Knotweed in your compost, recycling, or waste bins, due to its fast spreading and growing nature. The waste can either be sent to landfill or buried on site. 5. Known for its destructive capabilities, the Japanese knotweed is an invasive plant which can severely damage buildings and construction sites if left unchecked. There are three ways to get rid of Japanese Knotweed; each has their pros and cons, and prices vary. If you have it growing in your garden, you’ll want to get it removed as soon as you can. Using the instant eradication method the Japanese Knotweed company technicians will fully excavate the affected land, including Rhizomes. Japanese Knotweed (Reynoutria japonica) ... Do not compost viable plant material at home or send to landfill. Early detection and treatment of Japanese knotweed infestations is of paramount importance if remediation costs are to be kept to a minimum. Japanese Knotweed is also a controlled waste material and therefore must be disposed of via approved landfill sites only. Reduced landfill volumes. The location of the burial pit must be marked accurately on site plans so that it is not accidentally disturbed by any future works. 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. • 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. When we are called to site where Japanese Knotweed has been fly-tipped we work with the landowner to remove the problem. Read our Japanese Knotweed FAQs to find out more about this invasive plant. Do an Internet search to find out the rules regarding Japanese knotweed disposal … 4. Why is knotweed a problem? ... cause the spread of Japanese knotweed and all waste which contains Japanese knotweed has to be disposed of at a licensed landfill site. The local environment agency should be notified with the intention to bury Japanese Knotweed 7 days in advance. Only registered waste carriers should transport this material and relevant insurance policies should be in place. You must use a registered waste carrier and authorised landfill/disposal site if removed off site. Any attempts to remove Knotweed should therefore be carried out by licensed professionals. 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). 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. With its red stems and deep green leaves, it’s not deemed an unattractive plant. 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. 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. Cut Knotweed material and soils contain rhizomes must be disposed of as a controlled waste if they are to be removed from their site. 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. Japanese knotweed is a weed that can grow to over two metres high and spread rapidly. 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. • Plant material is a ‘controlled waste’ under the Environmental Protection Act 1990. In Northern Ireland, Waste Transfer Notes are required by the licensed haulier to transport the material to the landfill site. Get in touch for legal help! 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. 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. Japanese Knotweed Site Survey. And merely dumping it in the trash or into a landfill site is strictly forbidden. This is then removed to an environment agency approved disposal site. WHAT DOES JAPANESE KNOTWEED LOOK LIKE? Japanese Knotweed Burial On-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. Removal to landfill: This method completely removes Japanese Knotweed material from site and is very quick to implement. This may involve either burying the waste on-site or removing it to a specialist landfill. However, as the Japanese knotweed spreads rapidly, it can be a severe problem for homeowners. Burial pits should not be located under proposed buildings. Delays can be very costly. We’ll reveal all below. • Japanese knotweed (Fallopia japonica) is an invasive plant that can cause damage to property, and is very difficult to control once established. 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. On-site burial. A Japanese knotweed site survey and remediation options appraisal is essential in determining accurate development costs for a site. 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. We specialise in the removal and disposal of Japanese Knotweed from construction sites or any site that is being developed or remediated. The individual or organisation that has collected the knotweed is responsible for identifying a licensed landfill and transporting the knotweed to the licensed handler. Japanese Knotweed A Brief History of an Invasive Weed – What is it? 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. 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. Article 34. Japanese knotweed is so tenacious that it has been known to grow through solid masonry foundations. As well as harming the environment, Japanese Knotweed is able to grow through the smallest gaps in walls, pavements and structural foundations of buildings. 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. Site Capping removes knotweed to the construction foundation level*, minimising the depth of excavation and the resulting volume of waste. 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. Japanese Knotweed Ltd was asked to assess a closed landfill site that had a large infestation of Japanese knotweed. • 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. What Is Japanese Knotweed? Sometimes, though, the properties attacked by Japanese knotweed are brand new. 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. Cause japanese knotweed landfill sites spread of Japanese knotweed and all waste which contains Japanese knotweed each. Knotweed to the licensed handler sealed black plastic bags and leaving them direct... As you can: this method completely removes Japanese knotweed and contaminated soil to a landfill! 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