Plantskydd products are a "non-toxic repellant that repels animals before they bite by emitting odor that browsing animals associate with predator activity. Rainfast in 24 hours and lasts up to 6 months." Effective against deer, rabbits, voles, squirrels, chipmunks, opossum and other critters!
Read to use shaker can of granules. Just shake on the ground around plants you want to protext. Treats 600 sq. ft.