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Bed Bugs

Cimex lectularius


Up to 1/4-inch in length


It is likely that bed bugs are the most commonly known ectoparasites to humans. Nearly every child has heard the reminder, “Sleep tight. Don’t let the bed bugs bite!” Prior to World War II, bed bugs were fairly common in homes. Due to the introduction of modern pest control products in the 1940s, this insect faded from the American scene, and has only recently reappeared as a unique pest problem in buildings. These parasites are blood feeders, and they crawl into beds during the night while their victims are sleeping. The bite is painless and a number of bed bugs may feed for an extended period of time on any area of exposed skin. The resulting bite wound may show generalized minor swelling into a raised bump followed by itching. Fortunately, bed bugs do not carry or transmit any human disease, but the mere presence of any blood-feeding insect is disconcerting, at best. Eggs are deposited in small cracks in the bed frame, mattress seams, or in baseboards, trim or furniture near the bed. The nymphs and the adults reside near one another, hiding in such cracks awaiting nightfall when they might venture out to feed. In some cases, the offending bed bugs are harboring many feet from the bed in cracks in furniture, baseboards, doorframes, or even within voids in the wall. If populations become large, or when a host becomes scarce because no one sleeps in the bed for a period of time, bed bugs may crawl into other rooms or squeeze through walls to enter neighboring locations. They may also be transported from place to place hiding in furniture.


Bed bugs have become more commonplace in motels, hotels, and apartment buildings. Typically, an infestation begins in a single motel/hotel room or apartment and then spreads to neighboring units. Bed bugs spend the day resting in cracks or voids of furniture or walls.

Tips For Control

Positive identification of bed bugs is important because their close relatives, bat bugs and swallow bugs, can easily be confused with them. Misidentification can lead to unsuccessful control efforts. Bed bugs can be very difficult to eliminate, therefore consultation with an experienced pest control professional is recommended. Successful control depends on finding every crack or void where the insects are harboring and removal of the bugs by vacuuming or treatment of the harborage with an appropriate product. Overlooking even the smallest crack in furniture may lead to a persistent infestation, therefore beds, nightstands and related furniture often require disassembly and careful inspection. Carpets may need to be gently lifted along the edge and the space beneath treated. Baseboards, door and window frames, and any visible crack will require treatment in infested rooms. Should furniture be moved from an infested unit to another unit, it should be carefully inspected and cleaned or treated as necessary to prevent the spread of bed bugs to the new room.

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