Insecticides Chemical Warfare Against the Insects 1954
Posted on | April 9, 2010 | No Comments
Insect pest control using synthetic chemicals began during World War II. However, problems did develop and have become more evident with increasing research. Effects on nontarget organisms, chemical residues, arthropod resistance to chemicals, high cost, and the temporary nature of treatments became of increasing concern beginning in the late 1940s. DDT, perceived to be one of the most notorious of the offending chemistries, came into use in the early 1940s. The first case of an insect species resistant to the material—the housefly was reported in 1946. Twelve insect species were reported resistant to synthetic insecticides in 1948. Scientist now reported that more than 500 pest species have resistance to conventional insecticides. The catalyst for ecological awareness was Rachel Carsons Silent Spring (1962). Carson, a scientist talented in literary expression, electrified a slowly growing science-dominated environmental movement. Congress enacted the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) in 1947 to replace a 1910 Act. The new Act was introduced soon after discovery of organic insecticides. On April 22, 1970 the first Earth Day celebration brought 20 million Americans out into the spring sunshine for peaceful demonstrations in favor of environmental reform. Senator Gaylord Nelson (D-Wis.) and Congressman Paul McCloskey (R-Calif.) gave bipartisan sponsorship to the event, but its popularity far surpassed their wildest expectations. The first Earth Day <b>…</b>
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Insecticides Chemical Warfare Against the Insects 1954
Tags: active > contamination > education > epa > hazardous > Health > Insecticide > ld50 > osha > reproductive > safety > worker
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