Homes with central air are more prone to attract insects, Soto and Hernandez said. That s because the critters see them as sources of water, as well as food. Besides water, just the tiniest amount of food will attract them, said Rogelio Rocha, who saw ants invade his home earlier in the summer. All of sudden you see a hairball that turns out to be a pile of ants. Rocha managed to quell the problem by buying a fumigation kit, which included a pump and ant-killing spray.
Professional extermination can be more costly, though.
Still, the ants don t go away. I think I ve seen them year-round. Homes can be fumigated, but the creatures will still come in from the outdoors as long as the heat is a problem. We re just going to have to live with this.