Slugs thrive in wet conditions - always water in the morning so the garden dries by nightfall.
Plant resistant plants like herbs - slugs dislike heavily fragranced, fuzzy or furry foliage.
Protect young plants using plastic bottles or other coverings. Or let seedlings become larger before transplanting them.
Encourage birds, snakes, lizards, toads, frogs, and ground beetles to make a home in your garden.
Sprinkle salt around your plants - placed directly on a slug’s body, may desiccate it enough to lead to its death.
Diatomaceous earth, a fine powder that is very sharp microscopically and the edges easily cut through slug skin and desiccate them as they crawl over it. Replenish it after every rain or heavy dew.
Hair, eggshells, soot, bark and wood clippings can be used as barriers.