TERRO T2600 Perimeter Ant Bait Plus - Outdoor Ant Bait and Killer - Attracts and Kills Ants, Carpenter Ants, Roaches, Crickets, Earwigs, Silverfish, Slugs and Snails - 2 Pack, 4Lbs

This stuff worked great on a carpenter ant infestation I had but it took a couple weeks. I ordered this product and applied it about a week after I first noticed carpenter ants hanging out around the corner of my house. For the first week it seemed like issue was getting worse then I started noticing more dead ants than live ones. After about 2 weeks I'd only see a random ant here or there now I haven't seen a single ant in my house for a couple days and virtually none outside. It works great but the effects aren't immediate like some sprays might be. It purposefully kills the ants slowly so they have time to share the bait throughout the colony so if you don't see results after a couple days just be patient.

Only used for a few days and so far I have noticed a small decrease in carpenter ants around my trees.

Good product.

I had a problem with Carpenter ants in the house.Id see 8 or 9 a day walking around.Pretty sure its the wood chips around the house.sprinkled this all around the foundation inside and out.within 3 days they were all dead. As I was laying it down I saw an ant eat it right away.

We had a line of carpenter ants in our backyard, going from some wood we were using as a border to a dead tree. Used it and the ants were gone in less than a week.

I put this powder on a large ant hill on the edge of my sidewalk. After a day, they were still alive. This may not work on all ants. I bought it for earwigs, and it's hard to tell if the bait is working.

We put a line around our home and in about 4 to 5 days there were no more ants. We have used it for two years and can tell you it worked for us.

I love Terro ant bait traps but this product doesn't do squat for carpenter ants. They won't even pick up the bait. Waste of money!