DEAD ANTS!
We were swarmed by little black ants and large black ants. My son sent us this product we put bait tubes out one evening. I think the whole mound of ants ate through the caulk and swarmed those Tubes I use plastic straws cut them in one inch lengths clipped out one part so I made a little tray. There was thousands of ants. The next day they were almost gone by the third day they were DOA! It's been almost two years and tonight I'll put out more as we are seeing ants again