Environet are market-leading
Japanese Knotweed Specialists

item Knotweed Identification
item Removal & Treatment
item Testimonials
Why Us?

Operating across the UK, Environet is a leading Japanese knotweed specialist who can help with the removal of this damaging, invasive weed. Our skilled team can assist you with the eradication and treatment of Japanese knotweed and other non-native invasive species on commercial and residential property.

Prevent costly damage to your property and unpleasant legal battles by calling the Japanese knotweed specialists at Environet as soon as you detect Japanese knotweed on your premises. Since 1996, Environet has been safely and effectively controlling, treating and eradicating invasive weeds such as Japanese knotweed.

With over twenty years of experience, our highly-trained team operate across the UK to manage and remove Japanese knotweed from commercial and residential property and land. We work swiftly and efficiently to tackle the problem and to prevent any damage from being caused by the plants in the future. Furthermore, all our work is offered with a 10 year insurance backed guarantee underwritten by an ‘A’ rated syndicate at Lloyds for your complete peace of mind.

If you believe that you have Japanese knotweed on your land, then you need to act fast to prevent damage. Call our team on 01932 868 700 for safe and effective Japanese knotweed identification, removal and treatment.

Japanese Knotweed Identification

japanese knotweed leaves

If you suspect a plant is Japanese knotweed, then it is essential to act quickly to identify the weed. While Japanese knotweed is not poisonous, it has the potential to cause significant damage to homes and costly delays on construction projects.

What does Japanese knotweed look like? Once you know what you are looking for with Japanese knotweed, it is usually easy to detect. However, if you’ve never had experience with the invasive species, then it can be tricky to identify as it can take on different characteristics throughout the year.

Key characteristics of knotweed include ...

Japanese Knotweed Removal

Excavator screening japanese knotweed and invasive weeds

As Japanese knotweed specialists, we begin the removal process by carefully assessing each site, its constraints and the client’s circumstances. From then on, we engineer tailored solutions. As each site has its own requirements, we work on a case by case basis. Some of our revolutionary techniques for Japanese knotweed removal include Eco-Innovative Xtract™ which is a soil excavation and screening technique to remove rhizome. This method does not use herbicides, is cheaper than traditional methods and is ideal for commercial Japanese knotweed removal.

One of the most effective residential treatments ...

Japanese Knotweed Treatment

Operative treating Japanese knotweed

Tackling Japanese knotweed with herbicide treatment is the least expensive option, taking several years of repeat treatment to effect control. Herbicides can be applied using foliar spray, often the best method, but also by stem injection and leaf wiping. Chemical is absorbed by the leaf, and other green parts of the plant, and is naturally translocated into the root and rhizome system. The aim is to get a fatal dose into ALL parts of the root and rhizome system so that all viable parts of the plant are killed.

Rhizome dormancy or re-growth can be experienced if any part of the root or rhizome system receives insufficient herbicide to kill it. ...


Japanese Knotweed Heatmap


Discover if Japanese knotweed is present in your area by checking our Japanese knotweed heatmap. This can help homebuyers check areas for the potential risk and whether it might impact on a mortgage application. The map is regularly updated and already shows thousands of infestations of Japanese knotweed that have been identified in the UK. If you’re still not sure and want a more in-depth analysis of the risk factor in your area, Environet can help with a detailed site-specific survey, which will assess the risk of Japanese knotweed rhizome being present underground.

View the Japanese knotweed Heatmap.