We have a regualr pest control service. They sprayed the inside of the house when we moved in, then they spray the outside every 3 months. They also spray the yard, schrubs, etc. I asked the rep, specifically, about the need to use a preventative treatment on our cat, and he said a lot of their customers no longer use it. Supposedly, their service will take care of anything, even if it does get into the house or onto the pet. Our cat loves the lanai, and we haven't had a problem.
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