fumigation is a word that means to practice the act of detect, i.e, apply an insecticide with the aim of eliminating a particular pest.
In the context of etymology, the term fumigation consists of a neologism, because the applied product is known as DDT (Dichloro Diphenyl Trichlorethane). Thus, fumigation means using DDT to eliminate animals such as flies, mosquitoes, rats and cockroaches, which can pose a threat to human health.
DDT first became known during World War II, and gained more popularity after the 1960s.
Nowadays it is not allowed to use the chemical product DDT in Brazil, because its use is harmful to the environment and to people. Despite this, the term dedetizar is still used to describe the act of exterminating certain pests using other chemicals. There are several pest control companies that do this type of service.
Regarding the writing of this word, there is a doubt between fumigation and detection. Orally, the two forms are almost the same, however, the correct form is detection, and detection is not in the dictionary.
Currently, the term fumigation is often used as a synonym for disinsectization, which means to keep away insects. Disinsectization is usually carried out by specialized companies, which use insecticides suitable for urban environments. Among the various disinsectization techniques, it is possible to identify atomization, gel application, spraying and dusting.