Call for volunteers: 110 dates to give biodiversity a helping hand!

The action Stop Knotweed " is an important part of our association's work to protect the flora and fauna of Lake Geneva. We are delighted to announce that registrations open for the 2025 season, with over 110 dates available !


Register as a volunteer in the field


In 2024, more than 430 volunteers, A total of 2,086 hours of weeding were carried out by the ASL. By the lake or on the banks of the waterways, nearly 7,800 kg of knotweed were removed on 268 stations monitored monthly. Visit A review of 2024.

Thank you to all our volunteers for their contribution to preserving the biodiversity of Lake Geneva!

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Inscritption à la newsletter de l'ASL

Restez informé.e de l’actualité de l’Association pour la sauvegarde du Léman – ASL en vous abonnant à notre newsletter:
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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.