What is DDT(Dikloro Difenil Trikloroetana)?

Answer 1

DDT is a pesticide which was developed in America during the second world war. Is is known chemically as an organochloride pesticide, because it contains chlorine atoms. Organochloride pesticides are far less toxic to mammals than insects, and this made it safe to use massive amounts of this compound for the control of insect pests such as mosquitos and lice. However, there were usually a few insects left alive after an application of DDT. They survived because they had some resistance, and they went on to breed, passing on this trait to their offspeing. DDT then had to be used at higher and higher doses to still be an effective insecticide. Insects were developing a resistance to it. One other characteristic of organochloride pesticides is they don't decompose easily. DDT can remain in the environment for decades before breaking down. In the late 20th century, it began to become obvious that DDT was having a negative impact on the environment. Birds were not as immune to DDT as mammals. Preditors at the top of the food chain preyed on species which had been concentrating DDT in their bodies. Insects absorbed small amounts of DDT, and they were eaten by small fish, who concentrated the toxin as they fed on polluted insects. The large fish that birds like eagles ate were highly contaminated, thd the population of fish eating birds began to rapidly decline. DDT was then banned in the United States; however, it continues to be used in third world countries.

BTW: a similar resistance was developed by bacteria by the over use of antibiotics. Stalph is an infectious bacteria which has become resistant to nearly every antiobiotic known, and is one of the major killers in American hospitals. Reciently, it escaped hospitals and has begun to infect the general population.

Answer 2

I think the spelling you were shooting for is:

Dichloro-Diphenyl-Trichloroethane.

DDT is a synthetic pesticide that was used widely in the mid 20th century to control mosquitoes and other biting pests, and later as an agricultural pesticide. In 1962, Rachel Carson wrote a book called "Silent Spring" in which she criticized the policy of spraying DDT indiscriminately without fully understanding the health and ecological effects of it. She claimed that DDT was linked to cancer and that it was also a threat to wildlife. The book caused a public outcry which resulted in the banning of DDT for most uses in the United States in 1972. Although it is still used to manage the spread of insect-borne diseases in some parts of the world, its use is controversial and it is banned for agricultural use worldwide.

I hope that helps!

Answer 3

DDT--dichlorodiphenyltrichloroethane is an outlawed insecticide.

Edit: Some here are referring to it as a pesticide which is literally too broad a definition. Pesticide would include any number of pests not just insects.

Answer 4

A banned pesticide. See the site belowl.

Answer 5

its a pesticide.