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"DDT is good for me-e-e!"
The great expectations held for DDT have been realised. During 1946, exhaustive scientific studies have shown that, when properly used, DDT kills a host of destructive pests, and is a benefactor of all humanity.
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Good for row crops.
Zimmerman and his colleagues advised that DDT be sprayed directly on dairy cows, their feed, bedding and water, in a 5 percent solution. Dairy products are ideal pesticide carriers because they are emulsions of fats and water. DDT is a waxy organochlorine with an affinity for fats, and is efficiently carried by dairy products through the digestive tract into the organs. In the mid-1940s the FDA advised against the use of DDT, especially on dairy farms. However, the pressure of the industry to promote DDT was overwhelming and the FDA's advice went unheeded.  Pesticides and Polio: A Critique of Scientific Literature By Jim West
In 1946, when the Great Polio Epidemic was exploding, Zimmerman and Lavine advocated that farmers spray 5% DDT solutions upon dairy animals during feeding, in the air, upon their bodies and bedding. DDT Dosage In The Early 1950s