Is Sulfur good to keep snakes away? Is Sulfur good to keep snakes away? Sulfur: Powdered sulfur is a great option to repel snakes. Place powdered sulfur around your home and property and once snakes slither across it, it irritates their skin so they won’t return. Ammonia: Snakes dislike the odor of ammonia so one option is to spray it around any affected areas. Powdered sulfur may be an effective ingredient to repel snakes. Since powdered sulfur irritates a snake’s skins, it makes your property an unattractive place for them. The smell can be irritating, though, so be sure to wear protective...