Nippon Ant Killer Liquid is formulated to destroy complete ant colonies without trace. It consists of a sugary bait specially formulated to appeal to black ants – the type that tend to be attracted inside the home. Worker ants take the sweet bait back to the nest and feed it to the whole colony.Nippon Ant Killer Liquid is particularly useful when the ant nest site is unknown or inaccessible. It should be used at the first sign of ant activity – normally in early spring.To use apply a few drops of the liquid, preferably in the late evening, to a non-absorbent surface, near to the ant run. Do not disturb feeding ants as it is essential they take the bait back to the nest and the rest of the colony.Change the bait daily until any activity ceases. An effective dose is normally built up within the colony in 7 – 10 days, depending on size of the colony and frequency of feeding.