Posted: 22/05/2013 at 14:02
I would go for either Verdun's or Welshonion's suggestions, in my experience they are the most effective way of controlling slugs and snails. An early spreading of blue pellets helps before the blighters have had the chance to lay eggs, but this really needs to be done around mid February.
If you can't do that I'd suggest putting pellets under something heavy that your dog can't get to but the slugs can. I have one large container where I know slugs like to hide but it's easy to deal with them there by just using salt all the way round the base. There are many ways of dealing with them and it's really just a matter of finding a solution that you're comfortable with and that works best for you. Oh, and keep an eye on the Hosta's, the slugs absolutely love them.