Forgot about that. I killed off a nasty clump of laurel that was right on my fence line. With an expensive new fence I had to. I scarred up stems when they were approaching a foot tall, leaves too seeing as spraying leaves of laurel wouldn't do much, and wet them down with glyphosate. More than once.If it comes back again scrape up the soft bark with a knife and paint some round Up on it with a small brush/sponge/rag, etc. It will kill the plant but not affect anything near it. I have walnut tree all around and as folks have said the squirrels plant the nuts everywhere that that is the only thing that works if the trees come up in raspberry patches or roses.