My mother, who taught 2nd grade from 1949 thru 1956 (quitting only to raise 4 children of her own) told me, once, that it was normal, back in her teaching days, to utilize actual DDT powder, to kill head lice.
Mind you, this was long before it was banned for use, in the USA.
My mother, who taught 2nd grade from 1949 thru 1956 (quitting only to raise 4 children of her own) told me, once, that it was normal, back in her teaching days, to utilize actual DDT powder, to kill head lice.
Mind you, this was long before it was banned for use, in the USA.