TagBan is a stomach, contact & Fumigant insecticide. Tagban is an organophosphorus insecticide containing Chlorpyrifos 20 %EC. Tagban is a broad spectrum insecticide used to kill a wide variety of insects. Tagban is effective in controlling cutworms, corn root worms, root grubs, flea beetles, caterpillars, etc. It is used as an insecticide on cereals, cotton, field, fruit, nut and vegetable crops, and well as on lawns and ornamental plants. Tag ban acts on pests primarily as a contact poison, with some action as a stomach poison.