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The Deutsche Gesellschaft für Schädlingsbekämpfung mbH (transl. German Corporation for Pest Control), oft shortened to Degesch, was a German chemical corporation which manufactured pesticides. Degesch held the patent on the infamous pesticide Zyklon, a variant of which was used to execute people in the gas chambers of German extermination ...
The Nazis started using Zyklon B in extermination camps in early 1942 to murder prisoners during the Holocaust. Tesch and his deputy executive, Karl Weinbacher, were executed in 1946 for knowingly selling the product to the SS for use on humans. Hydrogen cyanide is now rarely used as a pesticide but still has industrial applications.
The development of organophosphate insecticides dates back to the 1930s and is generally credited to Gerhard Schrader. [28] At the time pesticides were largely limited to arsenic salts (calcium arsenate, lead arsenate and Paris green) [29] or pyrethrin plant extracts, all of which had major problems. [30]
Pesticide use by region over time. The first synthetic herbicides were discovered in the 1930's and 1940's. This was the era when synthetic antibiotics, plastics, and many other materials became available.
The annexed area had a population of 8,530,000 people (including about 1 million Polish Jews) and the Germans hoped to replace most of them with 530,000 ethnic Germans who had been repatriated from Eastern Europe in 1939 and 1940. In reality, the plan for massive population transfers and resettlement of Germans on Polish farms fell far short of ...
The organic movement began in the early 1900s in response to the shift towards synthetic nitrogen fertilizers and pesticides in the early days of industrial agriculture.A relatively small group of farmers came together in various associations: Demeter International of Germany, which encouraged biodynamic farming and began the first certification program, the Australian Organic Farming and ...
Also in Latin America Symbolism and Magic Realism were important movements. In Europe during the 1930s and the Great Depression, Surrealism, late Cubism, the Bauhaus, De Stijl, Dada, German Expressionism, Symbolist and modernist painting in various guises characterized the art scene in Paris and elsewhere.
Pages in category "Substances discovered in the 1930s" The following 16 pages are in this category, out of 16 total. This list may not reflect recent changes .