The stingers of honey bees are barbed and remain in the flesh. The honey bee dies after stinging. An embedded stinger continues pumping venom into the wound for a few minutes. Do not pull the stinger out, rather, scrape the stinger out with the edge of a fingernail. Most species of bees are pollinators with varying degrees of efficiency.
Some wild bees are more efficient pollinators of certain crops.
Bees feed on nectar and pollen. Only the social bees make honey as a food source for the overwintering colony. With solitary bees only the fertilized queen overwinters, the rest of the adults die off. Human activities destroy bee habitat and forage. Avoidance of bees and wasps is preferable to trying to kill them.