Slugs are attracted to the yeasty odors found in beer. In fact, they love it so much they crawl into containers with beer and drown. … Additionally, the beer or yeast solution evaporates and needs replenished every few days.

Is beer poisonous to snails?

Beer is poisonous to snails due to its ethanol content. Snails are attracted to the liquid because of its smell as a result of the yeast content. … The ethanol poisons them which results in them drowning in the alcohol.

What beer works best for slugs?

The slugs are attracted by the fermentation gasses of beer. Any cheap lager or homebrew is good, though ales and Guinness are best.