Propane: 20lbs for $13.75 or $2.95 by the Gallon

Bonide Slug Magic 1-1/2 Lb. Ready To Use Pellets Slug & Snail Killer

Bonide

Patented, all-weather formula makes slugs disappear. Biodegradable and safe for use around pets and wildlife, worms, and beneficials. Can be used in fruit and vegetable gardens up to the day of harvest. Active Ingredient: Iron Phosphate. Pelletized.