Natural Chemistry Natural Yard and Kennel Spray is a naturally-based spray which is very effective in killing ticks, fleas, black flies, and mosquitoes on yards and kennels. It is made with natural ingredients such as natural cinnamon oil, clove oil and cedar oil so it is guaranteed safe and effective to use. It helps instantly kill insect pests on contact and it ensures a long lasting flea control up to 7 days. It can be used around animals of all ages and may also be sprayed on pool/patio areas, other outdoor surfaces, shrubs, trees and more. The product is available in a 32 oz. sized spray bottle and can cover up to 4,500 sq. ft.