> Rachel Carson never called for the banning of pesticides.
It never has been banned for combatting human disease, so I don't see your point. (Except in a few places like the U.S. where several species were going extinct from extreme overuse.)
The italics indicate that I was quoting the article. The words you are quoting as mine are actually taken from the article I linked to.
DDT is so effective because it is persistent, unlike pyrethrins which degrade rapidly and need to be frequently resprayed. As a result, it has significant environment side effects and finds its way into the food chain. My only point was that in this case, DDT might be the lesser of two evils.
It never has been banned for combatting human disease, so I don't see your point. (Except in a few places like the U.S. where several species were going extinct from extreme overuse.)