A new organisation has been launched with the aim of halting falling bee numbers.
Swift action is needed to halt the bee decline, the group said
Three of the UK's 25 species are already extinct and more face the same fate unless fast action is taken.
In response to the problem, the Bumblebee Conservation Trust has been set up to help protect one of the UK's best known insects.
Enthusiasts behind the trust, based at Stirling University, have urged as many people as possible to get involved.
One of the group's co-founders, Professor Dave Goulson, of the university's school of biological and environmental sciences, said: "If we do not act soon, more bumblebee species could be lost forever.
"Everyone can help, and by joining the trust people can find out how."
As part of its conservation work, the organisation is encouraging the public to plant wildflowers, which provide nectar and pollen for bees and other wildlife.