Hi Riverman,
I had that trouble with my hostas and because pellets aren't a good idea (afraid hedgehogs would eat the poisoned slugs), I ended up creating a barrier. There is this natural clay product you can put down which is in chips and should a slug glide across it, it dries it out coupled with the texture they didn't like. Once I did that, no more slugs on my hostas.
I hope that helps.
