Though commonly used, the
pesticide approach often requires multiple visits and may not always be effective due to pesticide resistance and dispersal of the bed bugs.
Heat treatment method of bed bug control involves raising
room temperatures t
o or above the killing temperature for bed bugs, which is around 45 °C (113 °F).
Heat treatments are generally carried out by professionals, and may be performed in a single area or an entire building. Heat treatment is generally considered to be the best method of eradication because it is capable of destroying an entire infestation with a single treatment.
http://en.wikipedia.org/wiki/Bed_bug...ues#Pesticides