Ian wrote:

Spring has finally arrived in Toronto and I once again have an infestation
of ants in my Whirlpool dishwasher. I don't understand how they survive the
rinse. I figured they'd be washed down the drain, problem over.

Any idea of why they continue to flourish, an more importantly, how to rid
my kitchen of this scourge?

Thanks,,

Ian


They probably have a nest UNDER the washer. Try spraying an ant killer
under the machine and putting one of those ant traps at the bottom of
the cover that goes along the front. Worked for me.