I am trying an experiment! I don't want to add any icky chemicals to the ground and copper tape doesn't work in every situation- so I'm baiting for slugs!Here it how I did it! (courtesy of Martha Stewart)

Beer trap

Use:To catch and kill slugs.

How to make: Take a Ball jar and bury it in the soil so that its mouth is at the same level, or only slightly above the level of the soil.

How to apply: Fill the jar with beer (preferably dark ale) up to approximately 1/2 to 1 inch from the top of the jar.

Why it works: Slugs are attracted to beer, so if the trap is properly set up the slugs will come for the beer and get stuck in the ball jar.

http://www.marthastewart.com/article/organic-garden-remedies?autonomy_kw=slug%20bait&rsc=header_1