Black Flag Ant & Roach Spring 12 kills fast and keeps killing up to 16 weeks. Kills on contact. No mess, no staining. Effective on cockroaches, ants, carpenter ants, spiders (including black widow and wolf spiders), crickets, firebrats and silver fish spiders (including black widow and wolf spiders) fleas and brown dog ticks carpet beetles.
Other Ingredients: 99.875%