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”

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Setting course for 2026!✨❄️ May this New Year bring each and every one of us peace, inspiration and a great collective drive for Lake Geneva.

We look forward to seeing you in January to continue our work, share useful knowledge and work together to protect Lake Geneva. Your loyalty and commitment give our mission its full meaning, and we'd like to offer you our sincerest thanks.