Hi I have come across a slug pellet that makes the slug stop feeding and then crawl away and die. its a 'plastic' looking pale blue pellet. when I can remember the name I'll let you know. it is claimed to be 'safe' for wildlife.

Also if you only sprinle a few around the plants that need protecting, especially under the foliage so they are hidden from your dog that might help too.

These pellets contain metaldehyde which can poison dogs. The pellets have a meal base so a dog might find it edible. Try crushed eggs shells or sprinkling diatomaceous earth around the plants. I would mention beer traps but the dog might lap it up which would not put your dog at risk but could very well put it at ease.

A night-time wander round with a torch and a bucket of salt water to drop your finds into, works but don't forget to wear a disposable glove to pick them up with! If you are of the vicious mind set it can be quite therapeutic.

I think the one SBG is talking about may be Sluggo by Neudorf (available on Amazon). It isn't metaldehyde and, supposedly, the slugs/snails crawl away and are reduced to harmless elements. I've used it in the past but not with any great success - but that was when I lived next to school playing fields and my hostas attracted every slug/snail within a half mile radius.
I'm now going down the frog road and putting up with a certain amount of slug damage.
Other options are beer traps (or similar - if you can face emptying them) or the night crawl with torch and bucket of salted water, mentioned above.

there is a trap on the market that has a double cup so that you don't throw out the beer every day - they're not very big though and have to be emptied regularly.

I have used nemaslug and it was very good

http://www.marshalls-seeds.co.uk/nemaslug-slug-killer-40sq-m-pack-pid2507.html?gclid=Cj0KEQjw7r-rBRDE_dXtgLz9-e4BEiQATeKG7Aju2bhoj1G_OxRspJg5Vp_u8hE3ce3jyZgIy0iVsAwaAh9F8P8HAQ&gclsrc=aw.ds

following a tip on here I've tried surrounding plants with torn up rhubarb leaves. No slug damage at all so far!

spend a day searching all the dark spots in your garden - under trays - pots and the like - and when you find them kill them - another way I found very good -- is place a plastic cup in the garden at ground level and fill with beer - you will be suprised how many slugs go to drink it and fall in -- Triffidkiller