“The Manchester bee symbol was adopted during the Industrial Revolution, a revolution that Manchester was at the heart of. The bee denotes Mancunians hard work and graft during this era and Manchester being a hive of activity in the 19th century.
Bees are known as hard workers with a vital role to play in the ecosystem and the ability for humans and life forms to survive by pollinating crops. The allegorical link to bees relates that during this era, Manchester was a vital economic centre for Britain and many Mancunians were employed in a range of jobs in the city.
Although it is unverifiable, the idiom busy bee may have originated or at least been popularised as a result of Manchester’s adoption of the bee symbol.”