Patty, I have a huge garden and I use Roundup. It has like a needle type spray and i just hit the "evil" ones with it and I've never seen it drift. In fact, go to the bottom of the plant and saturate the root system. Dig gently around there and really spray it on.

It doesn't "leach" out into the ground. It's my favourite. I've used it since it came out, probably.......and if you can spray the leaves, without fear of damage, hit those suckers also. Bleach on the root system will do it also.......

good poisoning.......love, pat