If you capture cockroaches on only one side of a sticky trap, what does it indicate?

Capturing cockroaches on only one side of a sticky trap typically indicates that they are coming from that particular direction. This behavior can suggest a concentrated movement of cockroaches towards the trap, which is strategically placed to catch them. Such a capture pattern is indicative of a directional source of the infestation, meaning that there’s likely a nest or breeding ground nearby from which the cockroaches are venturing out.

In contrast to this, capturing them equally from both sides would suggest a more evenly dispersed population, while a lack of capture might indicate an absence of cockroaches or minimal activity in the area. Similarly, if the infestation were not severe, you might expect to capture few or none rather than a directional catch, which underscores the idea that the presence of cockroaches on one side signifies a clear movement pattern towards that side.