What is a common sign of a cockroach infestation?

Presence of live cockroaches is a clear and direct indicator of a cockroach infestation. Spotting live cockroaches during daytime hours, when they are typically nocturnal, suggests a severe infestation, as these pests generally prefer to hide away in dark, warm places during daylight.

While visible larvae might suggest an infestation, cockroaches predominantly reproduce quickly through egg cases, not larvae that are often seen with other insects. Strong floral scents are usually not associated with cockroaches but may be related to other pests or environmental factors. Regular sightings of other insects could indicate a broader pest issue, but it does not specifically point to cockroaches. Therefore, the unmistakable sign of live cockroaches is the most definitive evidence of an ongoing infestation.