Amdro Ant Killing Bait Stations, for Indoor Use, 4 Pack

First two days carpenter ants ignored traps completely. Some even walked up to the hole in it but then walked away. Toward end of third day I wondered why they were not being attracted to the poison and thought that if I dribbled just a few drops of water inside that might activate it. Within a couple of hours I had ants all over the traps. Within 48 hours there were dead and dying ants all around our bathroom and none coming in. That was a huge difference to the dozens of black carpenter ants in the bathroom at any moment and watching them entering and leaving the bathroom. I've used other Amdro products and they work great. Perhaps they should consider modifying instructions or seal each trap in a foil or plastic to retain freshness. My traps were only covered in the cardboard box they came in.

I purchased these the other day because of a rapidly growing ant problem in my bedroom. After purchasing the bait stations, I wiped down all of the surfaces in my room and placed the station near where the ants were foraging. Like many of the reviewers below, I watched as the ants walked around and over the station without hesitation. The closest I got to success was when one ant ALMOST entered the hole in the top. After reading the review from "SLUSA" I tried adding water to the bait, and it began to leak from the bottom of the station. It made a bit of a mess but the ants seemed slightly more interested. It worked best for me when I decided to scoop out the contents onto a piece of notebook paper and leave it out as-is. They SWARMED it all night (about two or three days ago) and I haven't seen them since. tl;dr The poison works but the ants don't care about it unless you scoop the bait out and add water to make it syrupy. Amdro should really think about redesigning this product. Make it a lot smaller/thinner and make the opening larger so that it's less of a hassle for the ants to explore. And perhaps add better instructions, because it does not work as described on the box. I gave it a 4/5 because it fixed the problem but I would not recommend it for any other reason than it being cheap.