You can hire a stump grinder service. Not something that can be done oneself. We had two huge tree stumps ground out and the resulting sawdust was unbelievable, but we could then plant over the holes. It's a pressing need in Aus as the termites will move in quick smart if you leave rotting wood around, and that's just before they see your house and start chowing down on that.
I'm prepping the ground in my garden to plant a plum and apple tree. I've dug up the bushes and plants that were there. However there is still a lot of roots and plant debris, some of which is too strong for me to pull.
Does anyone know a good way to clear this. Or, alternatively, is it okay to leave it if most has been removed?