For the most part in the Americas, we did eliminate them years ago, at least the nasty malarial varieties. https://www.cdc.gov/malaria/about/history/eliminatio

For the most part in the Americas, we did eliminate them years ago, at least the nasty malarial varieties. https://www.cdc.gov/malaria/about/history/elimination_us.html https://www.cdc.gov/malaria/about/history/elimination_us.htm... Huge amounts of DDT are maybe not the greatest way to accomplish this, but it was highly effective.