Put a drop of liquid dish soap in the water moat around the food bowl (if the dog doesn’t use this for his water dish). The ants can’t swim because the soap breaks the water surface and they will drown. Hope this helps.
I am having the same problem. I just put a shallow dish of water under the food bowls this morning. I was thinking of putting a couple of drops of vinegar in the “mote” water, But I am wondering if this will turn my cat away from his food. The soap sounds like a good idea but I am afraid of my cat drinking it.
I have about 48 hours until I leave for vacation so any advice would be greatly appreciated.