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DDT was first synthesized in 1874 by the Austrian chemist Othmar Zeidler. DDT's insecticidal action was discovered by the Swiss chemist Paul Hermann Müller in 1939. DDT was used in the second half of World War II to limit the spread of the insect-borne diseases malaria and typhus among civilians and troops.
J. Gordon Edwards (August 24, 1919 – July 19, 2004) was an American entomologist and proponent of the use and safety of the pesticide DDT.He was professor of entomology at San Jose State University for 40 years, and namesake to the university's entomology museum.
While later Cold War-era allegations were propaganda, the idea of using the beetle for purposes of warfare had factual origins. During World War I, the French did actually draft plans for using the potato beetle against the Germans and in turn, during World War II, Germany worked on developing an insect army of its own, while simultaneously alleging that such a program was being carried out by ...
Deltamethrin is a pyrethroid composed of a single stereoisomer, of a possible 8 stereoisomers, selectively prepared by the esterification of (1R,3R)- or cis-2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropanecarboxylic acid with (alpha,S)- or (+)-alpha-cyano-3-phenoxybenzyl alcohol or by selective recrystallization of the racemic esters obtained by esterification of the (1R,3R)- or cis-acid with the ...
Silent Spring is an environmental science book by Rachel Carson. [1] Published on September 27, 1962, the book documented the environmental harm caused by the indiscriminate use of DDT, a pesticide used by soldiers during World War II.
As the interwar period continued, the United States did not emphasize biological weapons development or research. [1] While the U.S. was spending very little time on biological weapons research, its future allies and enemies in the upcoming second World War were researching the potential of biological weapons as early as 1933. [1]
According to K-State, the true armyworm usually comes out in late spring. You can identify a true armyworm larvae by its greenish brown body with a stripe and yellowish head. The true armyworm ...
DDT has also been known to kill beneficial insects, such as wasps that kill caterpillars that, unchecked, destroy thatched roofs. [14] As a result, Mozambique's chief of infectious disease control, Avertino Barreto, says that resistance to DDT spraying is "homegrown", not due to "pressure from environmentalists". "They only want us to use DDT ...