Had a little something I wanted to share about unwanted trees. I've used a product called "Spike" from Dow Agra-Services, that works really well. Its a granule that you spread around the drip line and can either water it in or wait for rain to take it down to the roots. Its easy to use and wont kill grass, just woody plants. You have to be careful about using it around wanted mature trees because it will take them out too.

It's not the age or the miles, it's the RPMs.