United States. Bureau of Entomology and Plant Quarantine. Insecticide Division

USDA research on insecticides began in 1910 with the Insecticide and Fungicide Board of the Bureau of Chemistry. In 1927 the Bureau of Chemistry merged with the Bureau of Soils and the soil-related divisions of the Bureau of Plant Industry to form the Bureau of Chemistry and Soils. Research on insecticides continued under the broad research subject group "Chemical and Technological Research." In 1934 the Insecticide Division of the Bureau of Chemistry and Soils was transferred to the Bureau of Entomology and Plant Quarantine. The main research goal of the Insecticide Division was to find and regulate chemical solutions

From the description of USDA Insecticide Division notebooks on white arsenic : notebooks 1922-1946. (National Agricultural Library). WorldCat record id: 636077057