Seems like a number of folks on the GardenWeb Fruits forum bag their apples, pears, peaches, etc. I only have maybe 30 fruit trees, but I have no interest in such labor intensive fruit production. Heck, I'm doing good to manage what I already do in the way of encouraging my trees to provide ME with produce, rather than a wide array of pests.
Maybe when I retire I'll pick a few trees to try it on. I think most of the baggers use zip lock plastic bags, but there are on-going discussions on that forum about how best to do it. I do think most of those folks have dwarf trees, maybe some small semi-dwarfs. I'd have to use a ladder to get to the fruit anywhere near the tops of my semi-dwarf apple trees.
Chuck