Most biodiesel (I own a vw diesel) comes from vegetable oils with 
soybean the greatest contributor. I do not know how much commercial 
pollinators are involved with soybean pollination, so that would be the 
the link of bees, pollination and education. Corn, obviously is not. 
Other players are canola, which is commercially pollinated as well as 
sunflowers, which have a major increase in seed production from honeybees.

So the key is soybeans, and what I have seen is that there is an 
increase (small to .95x depending on variety) in production by bees, but 
not the many-fold increase as with other crops like sunflowers (3x or more).

Bill Truesdell
Bath, Maine

-- Visit www.honeybeeworld.com/bee-l for rules, FAQ and  other info ---