We have that problem here about one month a year -- ugh! It takes all (well, most) of the fun out of late spring. I put lots of those little ant houses out. The cats play hockey with them, but they help a little.

To keep the ants out of the cat food, I've bought some of those dishes designed to go under potted plants to catch overflow water. I put one under each cat food bowl and add enough water to make a moat to protect the cat food. It's not a perfect solution, but it helps. Note: enough spilled kibble can create a bridge for stubborn ants to cross on, so it's necessary to keep clearing the thing throughout the day. Either that, or teach the cats to eat without spilling!

Good luck. And thanks for the reminder. Ant time is coming: I need to go get some ant houses. Bleech.

I've also got some of those ultrasonic ant repellants. It seemed to work at first, but not so later ... maybe it was my imagination at first???

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