Leopard slugs have suddenly appeared in our yard this year, and even worse, they've appeared in our basement. Yesterday we found four down there. For those of you who haven't seen them, they're spotted like leopards and are 4" long...huge! We've certainly never seen a slug in our basement before, but with all the spring rain this year our basement was wet for a long time (like, 2 months or more).
We can't figure out where these nasty beasts are coming from. Any ideas? I've got escar-go which I use outside (organic slug killer) but we've got indoor cats so I'm afraid to use it in the basement. Help!