In Florida, cockroach allergens can stick around long after the roaches...

https://station-wiki.win/index.php/Why_Do_Professionals_Bait_Inside_Voids_Instead_of_Fogging_the_Whole_Room%3F

In Florida, cockroach allergens can stick around long after the roaches disappear, triggering asthma and allergies year-round. Even in clean homes, these tiny particles can cause big problems