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Fitch Asa

The American scientist Asa Fitch (1809-1879) first studied natural history and medicine, and later also agriculture and entomology (insect science). In New York State, he began collecting and examining insects in 1838. Finally, in 1854, he became the New York State Agricultural Society's first professional entomologist. In 1855 he first described it under the name "Pemphigus vitifolius" phylloxera than one at North American Wild vines parasitic "insignificant insect". Later, however, he called it "Phylloxera vitifoliae". His extensive studies of many insects later helped other scientists to solve some problems related to crop damage caused by insects. His numerous written records are now in the possession of the Smithsonian Institution in Washington DC. Another important entomologist related to the phylloxera was Charles Valentine Riley (1843-1895).

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