Why is the Nippon Powder not killing the ants?
Nippon Powder is an effective contact insecticide that will kill ants within minutes. As it is a contact killer, however, it is necessary to apply it to areas frequented by the ants to achieve control. Where it is not possible to treat the nest directly, you may find that Nippon Liquid would be of more use against the ants, as the product is taken back to the nest by the worker ants to feed the rest of the colony.
