Cimex lectularius

Until the 1940s, the bed bug was the most common parasite for humans, but with the introduction on the market of a famous insecticide, DDT, its proliferation suffered a severe blow until it almost disappeared. Since the 1990s, however, the parasite has returned to some countries and once again spread around the world in the 2000s. This new wave is due to globalization, the increase in international travel and movements and the greater resistance to insecticides that this insect has developed. It should be noted that a correlation between the presence of the insect and the transmission of infectious diseases has not yet been demonstrated.

Description

bedbug pest control

Bed bugs have a typical heart shape and are 5-6mm long when fasted to up to 7mm after feeding on human blood. The human body attracts these insects in various ways, including through heat and CO2 emissions during sleep. To feed on human blood, bedbugs inject an anesthetic when they pierce the skin, making the affected person insensitive to the insect bite at first. that the man frequents during the night, therefore tends to be close to the beds. In particular, bedbugs could hide in the bed frame, both in the slats and in the nets, but also in cracks and crevices of the wall, in the headboard of the bed, behind bad wallpaper, under carpeting or even behind skirting boards. Bed bugs usually visit humans to feed just before dawn. When frightened, they move quickly secreting a scent signal.

How they arrive

Mostly they spread via human transport. A person who comes into contact with an infested environment or with objects coming from it could unknowingly become the carrier of Cimex lecturalius and/or their eggs. When staying in an infested environment, bed bugs may find hiding in suitcases and clothes, thus being transported to the home once they return home. Also through the exchange of used material, it is possible to convey the bugs between different environments, favouring their infestation.

The signs of a bed bug infestation

Stings: They appear as small red areas of the skin with small flat or raised bumps, accompanied in most cases by itching. They usually appear along with exposed areas of the body, such as arms or legs. On its own, a bed bug could sting multiple times if disturbed, producing the characteristic rows of stings. If multiple bites are present in various areas of the body, these are likely indications of the presence of many bed bugs. Following the stings, a severe reaction may develop resulting in a skin rash.

Fecal stains: One sign to recognize a bed bug infestation are black dots that are nothing more than their feces. These annoying insects, in fact, continuously produce biological waste throughout the digestion of the blood meal. Their faeces appear differently based on the surface on which they were deposited and, despite being emitted in liquid form, they dry very quickly, leaving different traces depending on the surface. In most cases, the droppings are left inside the nesting points or just outside. They are initially glossy black, resembling rounded drops of black paint with a diameter between 0.3mm and 1mm. After some time they become dusty in texture, dull, and their colour becomes light grey. By examining the organic remains of bed bugs it is easy to understand if they have been recently left, this is useful in the case of recent pest control to understand if there was still activity in the room. When the droppings dry on solid surfaces, their appearance tends not to change from the initial one; the case of the release on fabric is different when the liquid is absorbed giving rise to a stain with faded edges. On some particularly light and/or loosely woven fabrics, the excrements draw characteristic cross-shaped stains, due to the capillary action of the fabrics which causes the liquid to expand along the fibres. When the droppings dry on solid surfaces, their appearance tends not to change from the initial one; the case of the release on fabric is different when the liquid is absorbed giving rise to a stain with faded edges. On some particularly light and/or loosely woven fabrics, the excrements draw characteristic cross-shaped stains, due to the capillary action of the fabrics which causes the liquid to expand along the fibres. When the droppings dry on solid surfaces, their appearance tends not to change from the initial one; the case of the release on fabric is different when the liquid is absorbed giving rise to a stain with faded edges. On some particularly light and/or loosely woven fabrics, the excrements draw characteristic cross-shaped stains, due to the capillary action of the fabrics which causes the liquid to expand along the fibres.

bedbug removal treatment

Live or dead specimens:  Although it is unlikely, it can happen to find carcasses of bed bugs when the infestation is still small. Dead specimens can be found in the mesh of cobwebs, squeezed between the mattress and the bed frame. However, it is unlikely that this type of discovery will occur, and in any case, it is directly proportional to the number of specimens present in the environment. In addition, bedbug carcasses, once dehydrated, remain intact for years, which is why it is always better to check for other indicators of infestation to avoid confusing the carcass of a bedbug from a previous episode.