Around 30% of our food and 70% of forage crops depend on pollination by insects. Honey bees play a central role in this. Although Switzerland has one of the highest bee densities, colonies are being decimated by diseases.
Worrying diseases include the varroa mite and foulbrood. The number of apiarists is also dropping, with their average age being around 70. (All pictures by Tomas Wüthrich.)