Word: ddt
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Veteran exterminators are interested but not enthralled by the idea of such war-born insecticides as DDT (TIME, June 12). They are inclined to think bugs will survive DDT...
...TIME (July 31) ... you state that the new insecticide DDT is deadly against the gypsy-moth caterpillar, black fly and mosquito. You have overlooked the fact that it is also deadly against the honey bee. . . . According to tests made at Michigan State College it has been found effective against flies, mosquitoes, ants, berry moths, leaf hoppers, thrips, and even rose chafers, but they have also found it ineffective against aphids, plant lice, Mexican bean beetle, and it just makes cockroaches drunk...
...Could Entomologist C. F. Campbell inform your readers whether, after the application of DDT in 20 acres of timberland, the birds that usually appear in them have gone elsewhere...
...Still in the experimental stage, DDT does indeed kill bees and certain other beneficial insects, probably also affects the bird population by cutting down its source of food...
...investigators also found that DDT can be absorbed through the skin. But in the diluted, powdered form in which DDT is usually used, it does not seem to be harmful: despite its wide use as a debusing powder in the war theaters, no case of DDT poisoning has yet been reported. The doctors' conclusion: DDT is "a definite health hazard," should be used with care...