It takes between 30,000 and 40,000 honey bees to pollinate an acre of apple trees. It takes only about 250 mason bees to do the same work. https://t.co/QENs23yXyK
From a slide deck I made a while back. In the original slides, if you click through them fast enough watching the decline in Red Delicious acreage is like one of those old flip books we used to have as kids (well, some of us anyway).