During the second half of the TWENTIETH century, the public campaigns of information on bed bugs and fumigation of bulk with insecticides such as DDT resulted in a decrease of almost total bed bugs in developed countries.
However, a few years later began to circulate scientific reports that documented the occurrence of populations of bed bugs are resistant to DDT. The first was in 1948, and detailed the failure of this insecticide in the eradication of an infestation of bed bugs in the barracks of the Naval Station of Pearl Harbor.
The resistance of bed Bugs to DDT was a fact already in the years 60
From then on, not stopped arise other studies that detailed the resistance to DDT in populations of bed bugs to other parts of the world. In the years 60 the resistance of various populations of bed bugs to DDT was already a proven fact.
The prohibition at the international level of this insecticide in the 70’s, as well as the emergence at the global level populations of bed bugs are resistant to this product, they made necessary the appearance of a new product to control the pest.
As an alternative to DDT, in the late 70’s began to use pyrethroids to eradicate populations of bed bugs. Insecticides based on this product are highly effective against bed bugs, but as happened with DDT, have already started to detect populations resistant to this insecticide.
The resistance of bed bugs to new insecticides was first documented in the United Kingdom in 2006
Insecticide resistance occurs due to a series of mutations in the DNA of the bed bugs that makes them resistant to its toxic effects. As a result, the vulnerable die, but the resistant ones will reproduce, making it increasingly difficult to eliminate this pest.
Laboratory studies have also seen that populations resistant to insecticides have a time of development of their juvenile stages is shorter than the vulnerable populations, but on the other hand, they are more vulnerable to lack of food.
In addition, it has also been found that the life expectancy of bed bugs resistant is shorter than that of bed bugs are not resistant. Before the emergence ever-increasing populations of bed bugs are resistant to insecticides, the use of methods of elimination without insecticides, such as treatments with steam, they stand as a good alternative for its control.
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