Place a piece of the suspected droppings onto a white piece of paper to identify flea and bed bug frass. Add a drop of water. If it is flea or bed bug feces, the water will turn red because these insects feed exclusively on blood.
How to Identify a Bed Bug Infestation. Having bedbugs in the house is not necessarily a sign of a dirty home. Even five-star hotels can have bedbugs. They can be a nuisance, however, and should be dealt with promptly. This wikiHow will
Bed Bug Behavior and Habit. Understanding the behavior of bed bugs (how they eat, live, and reproduce) will help you to find an infestation before it becomes established and to monitor for the presence of bed bugs after your home has been treated.
Bed bug droppings. The droppings of bed bugs are normally found on bed linens or other soft surfaces. They will look like tiny reddish-brown or black spots or specks and may appear as rust. The feces of bed bugs are comprised of digested blood sucked off the host. Unlike roach feces which feel grainy, bed bug frass is smooth and plain to touch.
Cockroach feces are found everywhere that roaches are found. If you've seen one scurry behind a picture on the wall or underneath the bed, you'll likely find droppings there as well. Common places to find cockroach droppings include: In the corners of rooms and all along the baseboards
Bed bug poop is even smaller than cockroach feces and is found, most likely, in your bed or other any soft surfaces they are infesting. It is comprised of tiny specks, about the size of the period at the end of this sentence. Their leavings are either rust colored or black, made up of dried blood.