In Switzerland you can buy a box and a starter wild bee population, let them multiply for the year, and then return them. Farmers then in turn purchase these wi

In Switzerland you can buy a box and a starter wild bee population, let them multiply for the year, and then return them. Farmers then in turn purchase these wild bees from the company. Repeat. https://wildbieneundpartner.ch/patenschaft/ https://wildbieneundpartner.ch/patenschaft/