Paul Balance

Paul Henri Pesson is a Entomologiste French, born the March 17th 1911 with Ardentes and dead the October 19th 1989.

He studies at the university of Rennes near Raymond Alfred Poisson (1895-1973) where he starts to be interested in the sucker insects of sap and studies the functional anatomy of it. He initially continues his research at the Laboratory of evolution of the organized beings of Paris under the direction of Maurice Caullery (1868-1958) then of Pierre-Paul Grassé (1895-1985). He supports his thesis in 1943, Contribution to the morphological and functional study of the oral apparatus and the digestive tract of the females of Coccides .

Professor honotaire of the agronomic National institute, it directs his laboratory of zoology there. Member various learned societies whose entomological Company of France (which it chairs in 1955 and 1987), of the zoological Société of France (which it chairs in 1962), of the ecological Société of France and becomes member of the Académie of agriculture of France in 1981.

Balance studies in particular the Taon S, the Cochenille S, the modes of action of the Insecticide S as with the development of resistance to these same products, with the action of ionizing radiations on the Insecte S.

It directs many theses so much of French students in entomology or ecology (like that of François Ramade (1934-)) but also foreign (like that of Julieta Ramos-Elorduy). Balance makes appear, alone or with its former Master and friendly Poisson, in the vast publication, directed by Grassé, the Traité zoology , parts devoted to the cochineals, the Thysanoptère S and the Hétéroptère S.

In addition to its many publications, it makes appear several books of popularization of which Le Monde of the insects (with the Editions Horizons of France, 1956) which obtains a great success and which is translated into English (with a publication in Great Britain and another with the the United States of America), in Italian, Spanish, Flemish and Swedish. It makes also appear the Love life of the animals: the invertebrates (Hatchet, 1965). It translates into French a work of Sir Vincent Brian Wigglesworth (1899-1994) under the title of the Life of the insects (Editions Meetings, Lausanne, 1970). It also directs a collection to the Editions Gauthier Villars having for title Continuing education in ecology and in biology and conferences given to the agronomic National institute publishes there.

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