Harry insinuated: > I get the feeling that you make things up as you go along. There does not > appear to be any resistance to DDT yet
http://www.blackwellpublishing.com/ridley/tutorials/The_theory_of_natural_selection__part_1_13.asp "DDT becomes ineffective quickly DDT-resistant mosquitoes were first detected in India in 1959, and they have increased so rapidly that when a local spray program is begun now, most mosquitoes become resistant in a matter of months rather than years. DDT becomes ineffective so quickly now because DDT-resistant mosquitoes exist at low frequency in the global mosquito population and, when a local population is sprayed, a strong force of selection in favor of the resistant mosquitoes is immediately created. It is only a matter of time before the resistant mosquitoes take over. Figure: increase in frequency of pesticide resistance in mosquitos after spraying with DDT. A sample of mosquitos was captured at each time indicated and the number that were killed by a standard dose of DDT (4 % DDT for 1 hour) in the laboratory was measured. From Curtis et al. (1978)." [figure: DDT-treated mosquito mortality goes down from 96% to 20% in 16 months] --- Indeed, in many countries, DDT was abandoned due to its ineffectiveness (mosquito resistance) rather than due to "Silent Spring"... > Meantime, we can have an academic discussion even as millions die in the > absence of the pesticide. As I mentioned before, window nets (such as the ones installed by a Swiss charity) are much more effective, and without poisoning the inhabitants. But the Gates foundation does NOT use window nets, because that wouldn't provide a RoI for the chemical industry for Gates, and it wouldn't serve the genocidal agenda. With "philanthropists" like that, who needs IG Farben? Chris ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ SpamWall: Mail to this addy is deleted unread unless it contains the keyword "igve". _______________________________________________ Futurework mailing list [email protected] https://lists.uwaterloo.ca/mailman/listinfo/futurework
