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.
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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.)
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