daylight Sightings
German Cockroaches are active at night and typically remain hidden during the day, so spotting one in the open—especially during daylight hours—could be a sign of a significant infestation.
Foul Odors
A strong, damp odor is common in areas with large German Cockroach infestations. This unpleasant smell becomes more noticeable as the number increases, often lingering in hidden spots.
Droppings
German Cockroach droppings look like small, dark specks or streaks and are commonly found near food sources, within cabinets, or along floor corners.