Word: ddt
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Fresh-water fishermen had better be careful how they use DDT. If they wipe out mosquitoes by treating the breeding places, they may starve the neighborhood fish by cutting off their food supply. That's the opinion of Professor Bertil G. Anderson, who teaches at both Ohio State and West Virginia. He has been studying the effects of DDT on living fish food, and he is alarmed...
...heroic: sulfur ointment-which often caused another kind of skin eruption-and boiling sheets! and clothes (now known to be unnecessary) every time they were used. In recent years dermatologists have been curing itchers with benzyl benzoate, which causes less rash. They are now experimenting with a concoction of DDT, benzyl benzoate to kill the mites and a secret ingredient which kills the eggs, in the skin-deep burrows...
...DDT is definitely-though not violently-poisonous. It should not be breathed or kept near the skin. After working with it, hands should be washed with soap. Only special dust mixtures should be used on pets or human beings...
...insects are easily killed by DDT. Roaches are the outstanding resisters. The best technique on roaches: attack often and leave a heavy residue on the places where they hang...
...much is known as yet about the full effect of DDT on large areas. Thus far, wholesale sprayings have had some surprising-and bad-effects on birds, fish and desirable insects. People who plan to treat whole islands or townships had better wait until the scientists experiment some more...