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Japanese Knotweed Eradication
Consultancy Service
The presence of Japanese Knotweed can be identified or verified by Phlorum Limited. We provide comprehensive method statements and clearly written reports evaluating the locations and extents of knotweed infestations. We ensure that all our work complies with suitable regulations and our qualified experts are always ready to help.
Phlorum Limited recognises that every project is different and in order to provide the most efficient and cheapest Japanese knotweed solution we examine the details of each project on a case by case and plant by plant basis. This focus ensures that our clients get the most cost-effective resolution to their knotweed problem. To identify japanese knotweed click here.
Site-Management Packages
Phlorum Limited is equally happy to provide:
- A ?bolt on? service, where we will send out experienced managers to oversee, instruct and supervise knotweed projects. Our managers slot in with existing project team members and contractors, utilising existing on-site staff.
- A complete, separate eradication package, where we will remove Japanese knotweed problems from our clients? sites as a ?stand alone? project.
Eradication of Japanese knotweed occurs through several treatment methods:
Chemical Treatment
24-48 months
Applications of specialised herbicides are used over the duration of two to four growing seasons. This Japanese knotweed solution is only ever carried out by fully qualified and experienced sprayers; this is often the cheapest treatment option. If a quicker solution is needed there are other methods that Phlorum Limited can provide. The herbicide treatment period can also be reduced by using a number of clever techniques to reduce the vigour of knotweed rhizomes.
Relocation and Herbicide Programme
24-48 months
On large development sites Japanese knotweed infested areas of land can be moved to specified treatment bunds or stockpile areas. This frees up areas to be developed and relocates the Japanese knotweed to more convenient areas of the site where it can be treated with an appropriate herbicide programme.
Reduced Dig and Herbicide Programme
12-24 months
This solution removes the most vigorous and hard to treat areas of knotweed plants. The remaining material can then be dealt with using a variety of soil and herbicide application techniques.
In-Situ Capping
This method encapsulates some or all of the Japanese knotweed growth within or under a specialist root barrier membrane. This barrier is of very high tensile strength and is robust enough to withstand cracks or tears from most spoil materials. This process can provide instant eradication of Japanese knotweed from many sites.
On-site burial
On-site burial is another instant Japanese knotweed eradication method. This involves the creation of a burial cell that holds the excavated knotweed waste. This technique is often best suited to areas where there are no deep groundworks or services ? e.g. car parks or public open spaces.
Excavation and Removal
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. The Environment Agency guidelines state that excavation of Japanese knotweed should be undertaken within a 7 meter zone around plants and to a depth of 3 meters. However, by carefully managing the knotweed excavation process, Phlorum Limited?s experts can significantly reduce the volume of waste arisings; often by as much as 50-90%!
Japanese knotweed falls under the classification of ?controlled waste?; therefore it is essential that it is disposed of at a licensed landfill. Phlorum Limited can help reduce Japanese knotweed disposal costs by successfully applying for Landfill Tax exemption.
Phlorum Limited can also create packages that combine treatment options in order to save money depending on our clients? needs.
- Japanese Knotweed Eradication
- Air Quality
- Sustainability
- Noise & Vibration
- Contaminated Land
- Environmental Impact
- Environmental Management
- Flood Risk Assessment
- Ecology
Japanese Knotweed
Find out what our clients think about our services.
View information on a selection of our case studies.
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