Natural Yard & Kennel Spray™ is made with natural cinnamon oil, clove oil and cedar oil which kills fleas by contact and fully effective on fleas for up to 7 days. This product also kills ticks, black flies and mosquitoes. Natural Yard & Kennel Spray™ can be used around all ages of animals and it is great for use one yards, kennels, pool/patio areas, outside surfaces, trees, shrubs and more! This product is not known to be harmful to any grass, trees, shrubs or flowers. 32 oz.