We are not exactly sure when they arrived in Cincinnati, but they are certainly here now. Bedbugs were originally brought to North America by European colonists and their presence has been documented on the island of Jamaica since 1720.
One of the earliest newspaper articles about bedbugs was found from 1905 in which the writer describes clothes and mattresses turned-out in the sun and caked with eggs.
In the 1950's because of the use of DDT, Bedbugs were believed to be extinct. But the effects of DDT can still be seen today. It is believed that chicken farmers in 3 US states were the first victims of the latest outbreak. Workers unknowingly carried the bugs to their barracks and they spread from there.
Bedbug populations in the United States have increased by 500 percent in the past few years and continue to grow year after year. The cause of this resurgence is still uncertain, but increased international travel is considered to be a contributing factor. They are spreading rapidly because most people aren't aware of a problem until they have an infestation. By that time they have unknowingly transported the bugs to multiple other locations where the process is repeated.
As far as killing them with chemicals, a United States study of bedbugs revealed that that many types have grown resistant to insecticides. Bugs were collected from across the country and were found to be several thousands of times more resistant to pyrethroids than average laboratory bedbugs. Cincinnati Bedbugs have been found to be the most resilient to deltamethrin than the bedbugs in Florida. Scientists attribute this to nerve cell mutations which in the Cincinnati City variety of bedbug are 264 times more resilient.
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