Phil Stevens wrote:What is the timeline and how big are the trees? If you've got a few weeks before they have to go, I would recommend digging around the largest possible root ball that you will be able to lift, then boxing or bagging them with a good compost mixture. Use a sharp spade to cut the roots as cleanly as you can in the shape of an inverted cone. Prune back the branches to reduce the transpiration demands and water well. Shade cloth will also help.
If you don't have the lead time and they need to go now, the same process applies without the time spent in the boxes or bags awaiting travel. Speaking of travel, covering with tarps is important if they're going in the back of a pickup or on a trailer at highway speed, as the wind will really suck moisture from them. Having planting holes ready at the other end is ideal, but if you can't manage that then keeping them in a nursery at the new location and planting them in the autumn or winter should be ok.
I have a little bit of lead time and most of my trees have max trunk thickness of about 2" so I'll try your suggestion and start trying to cut and bag them. And as far as travel we don't have to go very far and not at high speeds so that shouldn't be too much of a issue.
I'm going to try transplanting some of them into a existing wooded area that has old growth oaks so they should get some shade in the worst part of the day.