On Tue, 02 Aug 2016, Brooklyn1 wrote:

I use Round Up
to kill weeds in bunches in gravel driveways and around outbuilding
foundations but I've learned that it tends to kill adjacent plants...
I wouldn't use Round Up within 20 feet of plants I want to keep.

That is because you are spraying. When you paint a stump you use a paint
brush. We've done this numerous times. No nearby plants have ever been
killed.

Don. www.donwiss.com (e-mail link at home page bottom).