niban granular bait 4 lbs niban granular bait this weatherized granular perimeter insect bait is used outdoors or indoors to kill and control cockroaches, ants, crickets, silverfish and carpenter ants. niban's weatherized granules don't degrade from heat or sunlight and will last through four inches of rain. niban is the one insect bait that will continue to work because niban has no known resistance and is virutally odorless. niban is a very successful insect killer as it kills the microorganisms in the insect's stomach and blocks enzyme production causing starvation. and since it affects none of the insect's major systems, they can't develop resistance. use for in and around homes, apartments, garages, public and private institutions, schools, hotels, hospitals ,pet stores, zoos, kennels, warehouses, supermarkets, restaurants, vending machines and food processing plants. exterior baiting for the control of ants, including carpenter ants, around homes and other structures: treat exterior perimeter areas of structure in a band at least 2-4 feet wide at a rate of 6 ounces per 100 square feet. in attics, be sure to apply in eaves and access drains. in warehouse, garages and basements, concentrate application along walls and baseboards. controls epestsolutions offers the best do it yourself pest control products at the right prices with the fastest delivery.