Three Cornered Leek, Snowbell, Allium triquetrum

COMpany documents

Here you can download our Company Services brochure, Aquatics Weed Manual, Invasive Species Directory and Assurance Statements.

Environment Controls is a trading name of Japanese Knotweed Ltd.

company brochures

our assurance statements

case studies

Our case studies demonstrate our defined approach that we adopt for each contract. We listen to the client's requirements to devise the best solution for the site. Read how we achieve this, and the outcome.

News and information

Keeping you up to date with latest legislation, species control methods and interesting articles and interviews from our in-house experts and guest bloggers

Our top clients

Accreditations

contact@knotweed.co.uk