posted on
July 27, 2009 at 09:04AM
I had ants in the dishwasher one year. It's incredibly bizarre, but I believe they go after the bits of undissolved food that get trapped inside. Have you cleaned inside the dishwasher? Taken apart the wash arm assembly and cleaned it all out? Run Dishwasher Magic through the machine?
Also, I found that Terro ant poison was very effective at ending the ant invasion. Like you, our home was clean, but the ants wanted in. They got their fill of Terro, took it back with them, and that was that. I used the clear liquid stuff.
Don't bother trying to seal up cracks or anything; they will find another way. You have to make your home a place that doesn't benefit them. Only then will they leave you alone. Also, you may want to consider putting down an insecticide lawn treatment around May, which would help take care of the ant population, or, if you want something more targeted, get insect granules/spray for around the outside of the house and apply liberally.
Good luck!