[RangerScience]

AFAIK, this is only commercial bees, which have a pile of stressors (such as being shipped places frequently). Non-commercial bees are doing "better" (I remember hearing that they're doing fine, but poking around now that doesn't seem to be the case).

The other issue is crop pollination, which AFAIK has heavy reliance on commercial bees.

[tptacek]

To a first approximation ~all honeybees in North America are commercial honeybees; the way it was put on EconTalk a couple years back is, "if you see a honeybee in your yard, somebody owns it."

[maxerickson]

Most staples wind pollinate (corn, wheat, etc). Bees are needed for a lot of fruit and nut production though.