Word: ddt
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Dates: during 1940-1949
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UNRRA had only a tiny medical staff: about 600 doctors, 600 nurses, 60 sanitary engineers, 40 dentists. But it had plenty of miracle workers like DDT and penicillin. To trouble spots, UNRRA shipped: 7.5 million pounds of DDT powder, 809,550 million units of penicillin, one million pounds of sulfa drugs, six million cc of diphtheria toxoid, 5,167 million units of antitoxin. By 1946's end, UNRRA reported, typhoid, which had caused Europe's most serious postwar epidemic, was under control, diphtheria had been greatly reduced, typhus was rare, smallpox and plague had virtually been wiped...
...knows how phloem necrosis spreads. Dutch elm disease is better understood; it is a fungus carried from elm to elm by small bark beetles. They slip through the meshes of the strictest quarantine. Spraying will kill them, and the Department is experimenting with DDT and its rival, benzene hexachloride ("Gammexane" in Britain; TIME, June 24). But it is not too hopeful. There are too many elms to spray...
They did not drench the entire five square miles with DDT. Instead, fly expert Dr. C. H. Curran began to prowl the park, mapping it from a fly's point of view. From intimate knowledge of fly psychology, he knew what places they would consider beauty spots, where they would go for refreshment, amusement and procreation...
...those favorite resorts, but no others, he ordered sprayed with long-lasting DDT dissolved in kerosene with other killer chemicals. Last week he proudly announced the result: after two seasons, extermination. Employes at the park inn and camps never saw a fly all summer, though dining rooms went unscreened, food unguarded. The park's wildlife population was practically unaffected. Total cost for this year: $700, or 1? per guest per week...
...Last week, Drs. W. T. Sumerford and Eugene P. Odum of the University of Georgia reported on DPE, a DDT relative with fewer chlorine atoms in its molecule. Sprayed on water, it kills the unwanted mosquito larvae without killing fish...