Every Spring we seem to have an invasion. I have tried every kind of ant trap to no avail, they just don't want to go in, and then I stumbled on Terro Liquid Borax ant killer at Home Depot. Just a small drop and the ants are on it like stink on...you know what. They all gather around, drink it and take it back to the colony and it kills the colony. They never come back. I use it inside and out. I'm sold!
http://www.terro.com/products/liquid-ant-killer
Q
Built in bunks
Q