Symposium on 20 November 2021

Diversity – from field to fork

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We cordially invite you to this year’s symposium. Join us to hear about current Biovision projects that build on diversity instead of uniformity! We look forward to a journey through a wide-ranging programme where you will meet interesting guests and hear exciting stories from East Africa and Switzerland.

Programme highlights
Through concrete examples, you will see how Biovision is tackling the great challenges of our time in its projects. We will show what a diverse food system looks like and how it has a positive impact on the health of people, animals, and the environment.

Farmers, experts, and Biovision founder Hans Rudolf Herren will talk about how diversity in agriculture and nutrition is possible and how it creates new perspectives for people in our partner countries and in Switzerland.

The event can be attended via live stream.
We look forward to seeing you online!



Dr. Frank Eyhorn is the Executive Director of Biovision and a designated expert in organic agriculture with more than 20 years of experience in international cooperation.


Laura Angelstorf studied Communication Science and European Studies. At Biovision she is in charge of multimedia productions within the communication team and provides insights into Biovision's projects through videos.



Our guests


Dr. Hans Rudolf Herren, founder and President of the Foundation Board at Biovision, is one of the world's leading scientists in biological pest control. He has lived and researched in Africa for over 25 years. From 1994 to 2005 he was Head of the International Institute for Insect Research icipe in Nairobi, Kenya. (connected via video)


Fabian Kohler, geographer and M.Sc. in Sustainable Development, is Programme Officer for development projects in the field of environmental and plant health at Biovision.


Elvira Zingg is Head Supplier Development at gebana ag and is in daily contact with the subsidiaries and partner companies in the South.


Marilena Schumann, geologist and nature educator, is project manager for Sounding Soil at Biovision. Together with her team, she makes the soil audible and raises awareness among the Swiss population about the importance of healthy soils and the diversity of soil fauna.

Andreas Nussbaumer is a tenant farmer on the Burgrain farm of the Agrovision Foundation. He is a certified master farmer, trains apprentices and is a board member of the Lucerne Farmers' Association.


Stephanie Hess is a journalist and writes about sustainability and societal topics. She is the author of the book "ÖKOlogisch! Fakten, Wissen und Tipps – Nachhaltiger Konsumieren in der Schweiz” (2020). Her fact-based guide is intended to help consumers make more environmentally conscious decisions and critical purchases.


Yvonne Lötscher is a biologist and PhD in agricultural science. Together with her team, she implements the sustainable nutrition strategy of Zurich city. The focus is both on implementation in the city's own catering businesses and on raising awareness among the population about food and sustainability.


Bernhard Kammer is Head of the Ecology & Sustainability Label department at Migros. He and his team are responsible for topics such as raw materials, climate and labels within the range of goods at the supermarket chain Migros. He is a trained farmer and business economist (lic. rer. pol.).


This section is updated frequently.

Biovision Symposium, 20 November

Biovision Symposium, 20 November