Pest Photo Library
Bedbugs are parasitic insects of the cimicid family that feed exclusively on blood. Cimex lectularius, the common bed bug, is the best known, as it prefers to feed on human blood. Other Cimex species specialize in other animals, e.g., bat bugs, such as Cimex pipistrelli (Europe),Cimex pilosellus (western US), and Cimex adjunctus (entire eastern US).
The name "bed bug" derives from the preferred habitat of Cimex lectularius: warm houses and especially nearby or inside of beds and bedding or other sleep areas. Bed bugs are mainly active at night, but are not exclusivelynocturnal. They usually feed on their hosts without being noticed.
A number of adverse health effects may result from bed bug bites, includingskin rashes, psychological effects, and allergic symptoms. They are not known to transmit any pathogens as disease vectors. Certain signs and symptoms suggest the presence of bed bugs; finding the insects confirms the diagnosis.
Cockroaches are insects of the order Blattodea, sometimes called Blattaria, of which about 30 species out of 4,600 total are associated with human habitats. About four species are well known as pests.
Among the best-known pest species are the American cockroach, Periplaneta americana, which is about 30 mm (1.2 in) long; the German cockroach, Blattella germanica, about 15 mm (0.59 in) long; the Asian cockroach, Blattella asahinai, also about 15 mm (0.59 in) in length; and the Oriental cockroach, Blatta orientalis, about 25 mm (0.98 in). Tropical cockroaches are often much bigger, and, contrary to popular opinion, extinct cockroach relatives and 'roachoids' such as the Carboniferous Archimylacris and the Permian Apthoroblattina were not as large as the biggest modern species.
To maintain your home free of roaches, after the cockroach treatment is finished you will need to do a deep cleaning. Cockroaches are able to feed on a variety of materials. It is important to keep then the kitchen clean, and dry. If there are dead cockroaches, they need to be vacuumed up to prevent the living roaches from feeding on the dead ones.