How It Works Natureâs Defense Granular Mouse and Rat Repellent repels rodents â including mice and rats â with 100% Organic, herbal ingredients (no blood, urine, or rotten egg). Completely safe to use around plants, pets, and children, this formula wonât wash away quickly with rain and is less messy than liquids or gels. Pests are repelled by the blend of herbal ingredients and stay away from treated areas â humanely and effectively cutting down on pest problems without the need for dangerous chemicals, poisons, and traps. Pests Repelled Effectively repels mice and rats. May also repel squirrels, rabbits, and other rodents. Where to Use May be used in and around gardens, entryways, driveways, lawns, garages, parking garages, and more. Installation Applies in minutes; simply shake the package to disperse the granules in desired locations. Each 22oz container covers about 3,500 square feet. Re-apply weekly for best results.