What is the best indication of a German roach infestation?

The presence of visible fecal matter is a strong indication of a German roach infestation. German cockroaches are notorious for their prolific breeding and can produce a significant amount of feces, which often appears as small, dark specks resembling pepper or coffee grounds. This fecal matter can be found in areas where they are active, such as near food sources or in hidden corners.

Moreover, the presence of fecal matter not only indicates that roaches are present, but it also suggests a well-established infestation, as it points to a breeding population. Other signs of infestation, such as visible nests, high activity during the day, or the presence of egg cases, may occur in certain situations; however, the fecal matter is a reliable and consistent sign of German roaches, making it a key indicator for identifying their presence and assessing the severity of the infestation.