3 ms·
One of the things about DDT, in addition to everything else, is insects can and do develop resistance to it: http://en.wikipedia.org/wiki/DDT#Mosquito_resistanc
by GFK_of_xmaspast 13y ago
One of the things about DDT, in addition to everything else, is insects can and do develop resistance to it: http://en.wikipedia.org/wiki/DDT#Mosquito_resistance http://en.wikipedia.org/wiki/DDT#Mosquito_resistance