If you have a family farm... borrow the uncle's rototiller, and make 2-3 ft cuts zig-zaging through the trees or at the edges of the trees, where the deer would hang out anyways in the fall.
Then just scatter a bunch of cheap clover seed from the feed store. purple or white clover... not the red clover crap.
if you plant it now, it will be huge and healty come fall when lots of other plants are dieing off.
Besides clover, if you just rip up the ground, tons of wild seeds will take root. stuff the deer love.
Clover is good. Plus its a nitrogen fixer so it makes the soil better for next years plants. plus its cheap, and grows easier than grass.
Thats what I'd do If I had an area. it couldn't hurt as a back up plan... like you were saying.