it is more about for tree stumps. but i do not see why it would not work for the bushes.
http://www.tractorbynet.com/forums/b...get-trees.html
one thing i dislike trying to get up, under a bush, and wrapping a chain around them. ya end up looking like you been in a cat fight, and the cat won.
a warning though. do not use nylon rope or any rope for that matter. ropes will stretches, and if the rope snaps. it could deadly or very pain full if it snaps back and nails you.
chains, and metal cable. yes they can stretch. but there is much less rubber band effect to them. so if they do snap, more than likely they won't go flying and nail you or the tractor. they can, but much less likely to.
if the bushes are fairly small. i might do a baby crawl first. but if that is no good. i will put just a little bit of slack in the chain. lower the hitch as much as possible without rubbing on ground, and then let off the clutch with some gas. and the bushes / small trees come right on out. ((problem with this last statement is, you will be more prone to roll the tractor, so be ready with pressing the clutch in.)) and with the last method, it can yank you pretty good, if the bush doesn't come out.
though i tend to find that i need to wrap the chain around most bushes a couple times maybe up to 3 times. in order to get majority of the roots out. resulting in me having to have a couple chains. it would be nice to have a "bush grabber" vs having to redo some chains because the chains slipped up and over the branches or broke all the branches off.
i haven't tried what others have done in the one link. and next time i need to go pull some bushes / small tree stumps. i will be doing the old leaver trick to see how it works. i would think being able to not have the tractor almost right on top of me, while hooking the chain up on bush. but just a small A stand pipe or old wheel rim. to deal with. would save me some good cuts on my face and arms.