Changes

Bedbugs have been plaguing humans since ancient times. They are mentioned in medieval European texts and in classical Greek writings back to the time of Aristotle.  Use of the pesticide DDT in the 1950s and its successors resulted in the virtual disappearance of bedbugs overall in the United States. Some state laws once required that the furniture be tagged as fumigated before it could be resold.  

Bedbugs have been plaguing humans since ancient times. They are mentioned in medieval European texts and in classical Greek writings back to the time of Aristotle.  Use of the pesticide DDT in the 1950s and its successors resulted in the virtual disappearance of bedbugs overall in the United States. Some state laws once required that the furniture be tagged as fumigated before it could be resold.  

In the year 2000 reported infestations of bedbugs began a dramatic increase, the prime causes of which are yet debated. Social aspects such as  increased travel immigration and population density, clutter, etc. have all been blamed, as well as changing pest control products and methods and the development of strains of bedbugs that are resistant to insecticides. As regards the latter, one theory for the cause of bedbug resurgence postulates that use of DDT and its successors (DDT was banned, effective Jan 1, 1973) on household pests such as the German [[cockroach]] also killed bedbugs before they became established in a home. After roaches developed resistance to every insecticide used, hydramethylnon bait was introduced in the early 1980s, which provided superior effectiveness. This resulted in a switch from spraying and dusting and baseboard treatment which also controlled bedbug populations, to the use of baits and Internal Growth Resistors (IGRs) in the early 1990s. In addition, besides DDT, many more pesticides, including broad spectrum residual chemicals, were banned or heavily restricted in the United States during the past few decades, and many developing countries have also banned many powerful pesticides.

In the year 2000 reported infestations of bedbugs began a dramatic increase, the prime causes of which are yet debated. Social aspects such as  increased travel immigration and population density, clutter, etc. have all been blamed, as well as changing pest control products and methods and the development of strains of bedbugs that are resistant to insecticides. As regards the latter, one theory for the cause of bedbug resurgence postulates that use of DDT and its successors (DDT was banned, effective Jan 1, 1973) on household pests such as the German [[cockroach]] also killed bedbugs before they became established in a home. After roaches developed resistance to every insecticide used, hydramethylnon bait was introduced in the early 1980s, which provided superior effectiveness. This resulted in a switch from spraying and dusting and baseboard treatment which also controlled bedbug populations, to the use of baits and Insect Growth Regulators (IGRs) in the early 1990s. In addition, besides DDT, many more pesticides, including broad spectrum residual chemicals, were banned or heavily restricted in the United States during the past few decades, and many developing countries have also banned many powerful pesticides.

With many factors possibly contributing to the exponential rise in bedbug infestations, it is difficult to know what physically is the primary caused of the current bedbug epidemic. Michael Potter, a professor and urban entomologist at the University of Kentucky, stated, "The bottom line is it may be a convergence of all those factors, but none of that really explains the rapid increase in recent years," said  

With many factors possibly contributing to the exponential rise in bedbug infestations, it is difficult to know what physically is the primary caused of the current bedbug epidemic. Michael Potter, a professor and urban entomologist at the University of Kentucky, stated, "The bottom line is it may be a convergence of all those factors, but none of that really explains the rapid increase in recent years," said