What Crops require bees for Pollination?

[haniford]

Besides Alfalfa, what crops, require insects especially Bees to pollinate? I have an article that indicates 750 Mason Bees can pollinate as much as 20,000 Honey Bees.
Can someone refer me to a Website that would inform me as to the Crop & type of Bees required?

[parsley]

Sainfoin yields very well with lots of bees.
Parsley

[biovision]

Hybrid canola also requires bees for pollination. Try contacting the Lethbridge research station (Ag Canada). I understand that they are doing some interesting work in the pollination area.