Ant-Rid has a unique delayed action formula with special sweet based attractant to lure foraging worker ants to the liquid. Initially, ant activity may increase but this will ease as worker ants take the liquid back to the nest passing it on, destroying the queen and nest. Ant-Rid works best indoors. However, success can be achieved outdoors by shielding Ant-Rid from sun and breeze, which can cause skin to form. Ant eats bait| Takes food back & infects the ants| Kills the queen & destroys the nest