Invasive Vegetation Management & Treatment Limited


Japanese Knotweed - Do's & Don't's:


Below are a list of Do's & Don't's when dealing with Japanese knotweed;



get an expert such as IVM involved with the japanese knotweed on the site as soon as possible, ideally prior to works commencing.

fence off known areas of japanese knotweed found on the site, making site workers aware of it and ensuring the plant is not spread, prior to IVM's arrival on the site, the fenced area should extend 7 metres past the last visible knotweed plant.

ask IVM to produce a Japanese Knotweed Management Plan (KMP) ensure the document is adhered to by all on site workers for the duration of the project.

use a trusted company to deal with the japanese knotweed, ask for references, speak to previous customers or maybe arrange a visit to an existing site.

place information regarding japanese knotweed on site boards, educate site workers on the plant and its risks,



undertake any form of treatment on the japanese knotweed yourself, only use an approved contractor to carry out treatment works. The wrong treatment at the wrong time may make future eradication more expensive or extend the treatment period.

carry out soil strips or full site clearance of areas known to contain japanese knotweed, this will cause the knotweed to spread and may push eradication costs up.

use areas of a site containing japanese knotweed to be used as a storage area, this may result in the plant being damaged, or sections of the plant being spread around the site.

allow any japanese knotweed to leave the site in any way that will contravene the Environmental Protection Act or the Duty of Care Regulations.

cut stems of japanese knotweed, advanced treatment methods such as the IVM 'FAST' System rely on active japanese knotweed growth for herbicide application.

allow the japanese knotweed to spread from your site, to an adjacent site, this may result in court action being taken against you.

use any part of the japanese knotweed plant or rhizome system to be used for composting, for residential customers - do not place japanese knotweed in a garden waste wheelie bin.


To view some frequently asked questions regarding japanese knotweed please visit our FAQ Page.




























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