Word: ddt
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Dates: during 1960-1969
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...Viet Cong stepped up its activities, the antimalaria campaign had been one of the most successful of the U.S. Operations Mission's efforts in South Viet Nam. With ten American advisers and 5,000 Vietnamese workers, USOM had spent $14 million, sprayed more than 10 million pounds of DDT, and slashed both the incidence of malaria and resulting deaths among the Vietnamese. But last year the Viet Cong terrorists began to take aim at the malaria fighters; since then, at least twelve have been killed and 58 are missing. Upland malaria is the more dangerous variety. On the coastal...
...HARD DAY'S NIGHT. A treat for the Beatle generation. The holler boys' first film is fresh, fast and funny, and it may moderate the adult notion that a Beatle is something to be greeted with DDT...
...arguments for the use of modern pesticides. The ugly, hairy, 2-in. caterpillars eat every leaf in their path; the rustle of their ill-smelling droppings sounds like falling rain. But public ap prehension about the possible dangers of chemical insect killers is now shielding the hungry worms from DDT and other long-lasting poisons. State and federal authorities are turning with some misgivings to less controversial means of protecting the forests...
This summer's anti-gypsy-moth campaign in New Jersey has sprayed 41,000 acres of infested forest with carbaryl, an insecticide that takes only hours to turn into inert residue. Carbaryl is therefore less effective than DDT, which stays on the foliage and kills caterpillars for weeks or months. Lest the cautious chemical fail to save the forests, New Jersey's moth fighters also plan to drop by airplane 100,000 cardboard traps baited with a synthetic sex scent to attract male gypsy moths. New Jersey conservationists hope that when caterpillars that survive spraying turn into mature...
...fall or in early spring before the buds swell. At those times, few birds are around to be damaged, and when the bark beetles start flying in April from diseased to healthy elms, they are killed by the long-lasting poison. Another help would be substitution of methoxychlor for DDT. Methoxychlor is more expensive, but it kills bark beetles just as well, and it is only 10% as toxic as DDT to birds and other wildlife...