We welcome everyone's help to ensure that our work is carried out on a regular basis. We therefore need everyone in the cantons of Geneva, Valais and Vaud to get behind our "Stop Knotweed" campaign.

Register now:
Registration form on the Stop Knotweed page
asl(at)asleman.org or 022 736 86 20

You will be given all the information you need about the types of work you can do, the sites where you will be working and the times of year when this large-scale operation will take place.

Go to the "Stop knotweed" action page