This highly effective insect powder will kill ants, cockroaches, beetles, earwigs, silverfish, woodlice plus most other crawling insects.The powder should be dusted along cracks, crevices, ant runs and, where ants are invading premises, along points of access such as doorsteps, window frames, air-bricks etc.If an ants nest is located it should be opened up dusted well with killer powder and then trodden down. If the nest is located in a position that cannot be disturbed, dusted the entrance liberally.Nippon Killer Powder can also be used to treat wasps nests by applying liberally into the nest or apply in piles by the nest entrance. The nest time to treat wasps nests is in the evening or on dull days when wasp activity is at a minimum. Take care not to disturb the colony and do not return to the nest until all wasp activity has ceased.