Soilutions

We'll clean it up: 0800 0209 307

  • Home
  • Services
    • Environmental Consultancy
      • Phase 1 – Land Contamination Assessment
      • Phase 2 – Intrusive Ground Investigations and Quantitative Risk Assessment
      • Remedial Options Appraisal
    • Soil Remediation
      • Soil Disposal
      • Bioremediation
      • Soil Chemical Oxidation
      • Stabilisation
      • Thermal Desorption
      • Soil Washing
      • Engineered Solutions
    • Groundwater Remediation
      • Pump & Treat
      • Extraction & Disposal
      • Groundwater Chemical Treatment
      • Air Sparging
      • Vapour Extraction
    • Oil Spill Response Services
      • 24/7 Emergency Spill Response
      • Spill Assessment and Clean-up
      • Oil spill clean up guide
      • Equipment Supply and Hire
    • Invasive Weeds Solutions
      • Japanese Knotweed
      • Giant Hogweed
      • Rhododendron Ponticum
      • Himalayan Balsam
      • Herbicide Treatment
      • Excavation & On-site treatment
      • Off-site disposal
    • Nuclear Decommissioning
    • Mobile Orchards
  • About Us
    • People
    • Careers
    • Industry links
    • Performance
      • Safety
      • Quality
      • Environment
    • Awards
  • Case Studies
  • Resources
    • eBooks
    • Guides
    • Case Studies
  • Media
  • Blog
  • Contact us

Soilutions

Specialists in the remediation of contaminated soils and groundwaters

You are here: Home / Guides / Japanese Knotweed Treatment

Japanese Knotweed Treatment

Part of our Japanese Knotweed Removal Guide. Click to see more answers to your questions.

Herbicide – Spray

  • Has to be conducted by a suitably qualified sprayer operator.
  • All regulations and conditions of herbicide have to be adhered to.
  • Follow up spraying may be required.
Backpack sprayer
Herbicide application with a backpack sprayer

Herbicide – Stem Injection

  • Has to be conducted by a suitably qualified sprayer operator.
  • All regulations and conditions of herbicide have to be adhered to.
  • Uses a highly concentrated dose.
  • Suitable for small areas / targeted treatment.
Stem Injection of Knotweed
Injecting knotweed with herbicide

Herbicide – Weed Wiping

  • Has to be conducted by a suitably qualified sprayer operator.
  • All regulations and conditions of herbicide have to be adhered to.
  • Uses a highly concentrated dose.
  • Suitable for small areas / targeted treatment.
Weed wiping
Weed wiping knotweed regrowth

Excavation

  • Provide faster results than herbicide spraying.
  • Large amounts of waste generated due to roots and soil being excavated.
  • Waste to be treated on site unless transported to a licensed disposal site by a licensed waste carrier.
  • All waste transfers need to be recorded on consignment notes.
  • If subsequently bunded and treated treatment times can be greatly reduced from in-situ treatment.
Excation of Knotweed
Excavation of Knotweed

Burning

  • Controlled burning done on the same site where it was produced.
  • An environmental permit may be required.
  • Burning not to exceed 10 tonnes over a 14 hour period.
  • Residual ash can be spread over the area of excavation or buried.
Burning Knotweed
Burning Knotweed

Burying

  • Burying must be done with the proviso of the Environmental Agency.
  • Can be done within a purpose built cell lined with an anti-plant membrane at a depth greater than 2m.
  • If buried without a membrane the cell has to be at a depth greater than 5m.
  • Burying plant material must not interfere with the groundwater.
Knotweed membrane in place
Knotweed membrane in place
Japanese Knotweed Removal

Everything you wanted to know about Japanese Knotweed but were afraid to ask

Japanese Knotweed can be the stuff of nightmares for developers and homeowners alike. Not sure if you have a Knotweed problem? Looking for the answers? This free eBook will help educate, identify, treat and address the importance of eradicating Japanese Knotweed. Download it now for free!

Free Download!

Free advice

We're always happy to speak to you about any issues you may have. Just pick up the phone!

0800 0209 307

Free eBooks!

We have eight free eBooks on Phase 1s, Phase 2s, Waste Soil Classification & Disposal, Soil Remediation, Oil Spills and Invasive Weeds. Everything you ever wanted to know about these subjects but were afraid to ask!

Soilutions ebooks

Download them!

Follow us on Twitter

Follow @soilutions

All the latest news and interesting content!

Tweets by @soilutions

Quick links

  • Contact us
  • Environmental Consultancy
  • Remedial Options Appraisal
  • Soil Remediation
  • Groundwater Remediation
  • Invasive Weeds Solutions
  • Oil Spill Response Services

Resources

Our eBooks available for download:
Phase 1 Desk Studies / PRA Explained
Phase 2 Site Investigations Explained
Waste Soil Classification & Disposal Options
Guide to Soil Remediation
Guide to Oil Spill Response
Guide to Giant Hogweed Removal
Guide to Japanese Knotweed Removal
Guide to Rhododendron Removal
Certificate Number 10312
International Spill Accreditation Scheme
Constructionline logo

Copyright © 2003 - 2022 Soilutions Ltd. · Privacy Policy · Terms & Conditions