For the control of common black ants in and around the home nippon ant killer liquid is a sugary bait formulation designed to attract worker ants to take the bait and feed it to the whole colony this product is particularly useful when the nest site is unknown or inaccessible apply at the first signs of ant activity normally early spring how to use remove readily available foodstuffs pierce the sachet and apply a few drops of liquid preferably in late evening to a non absorbent surface by the an