: Most farmers are unsure about the availability and quality of managed bumble bee colonies, as well as general pollinator decline.
If you are looking to purchase bees for commercial or hobbyist use, specialized companies provide colonies (typically Bombus impatiens in North America):
The search for a specific paper titled or primarily containing the phrase "buy bumble bees for pollination" suggests you may be referring to published in Frontiers in Sustainable Food Systems (August 2021).
: The paper identifies pesticide exposure, habitat loss, diseases, and weather changes as primary drivers of pollinator decline. Where to Buy Managed Bumble Bees
