送交者: cornbug 于 2005-8-16, 15:03:59:
BED BUGS
by Michael F. Potter, Extension Entomologist
University of Kentucky College of Agriculture
Most householders of this generation have never seen a bed bug. Until recently, they also were a rarity among pest control professionals. Bed bug infestations were common in the United States before World War II. But with improvements in hygiene, and especially the widespread use of DDT during the 1940s and '50s, the bugs all but vanished. The pests remained prevalent, though, in other regions of the world including Asia, Africa, Central/South America and Europe. In recent years, bed bugs have also made a comeback in the U.S. They are increasingly being encountered in homes, apartments, hotels, motels, dormitories, shelters and modes of transport. International travel has undoubtedly contributed to the resurgence of bed bugs in this country. Changes in modern pest control practice - and less effective bed bug pesticides - are other factors suspected for the recurrence.
Description and Habits
Bed bugs are small, brownish, flattened insects that feed solely on the blood of animals. The common bed bug, Cimex lectularius, is the species most adapted to living with humans. It has done so since a
ncient times.