Yeah, we use that basal spraying here too. It works well.
But then you still have the tree to deal with. That's why I'd rather just pull them, and then stack to burn.
They say that the sooner you apply that stump killer, the better it works.
One guy I know has a shear, and after he cut's it off, it has a spray nozzle that sprays the stump! Pretty cool!
