I only have a few apple trees, but I just leave the apples on the ground. I leaf bagger would be useless. If you had a longer hose on the impeller instead of hooking it to deck you could vacuum the ground with it. It would still take a long time. Not to mention how bad it's going to suck emptying shredded rotten apples out of the hopper. I'd use a lawn roller to crush them and speed up the decaying process.