Deer Scram Professional stimulates a strong fear-based response that scares deer by emitting an odor they associate with death. It repels deer before they begin browsing shrub, and eating plants and flowers. Ideal for Pest Control Operators, Landscape Professionals, Maintenance Professionals and Foresters, Grounds and Greens Keepers. Contains animal by-products, including dry blood and meat meal. It also contains garlic, pepper and other natural substances. Coverage: a 25-pound bucket covers 1,440 linear feet in protective strips (up to a maximum of 27,900 square feet, based on 18-inch strips). Year-round application. Environmentally safe. Non-toxic -- won't harm animals or plants.