You don’t say

I’d never believe it if I hadn’t read it.

Except, of course, that it is a well known fact in the modern world.

DDT Spray Scares Mosquitos Away, Study Says

Mosquitoes that carry malaria, dengue fever and yellow fever avoid homes that have been sprayed with DDT, researchers reported on Wednesday.

The chemical not only repels the disease-carrying insects physically, but its irritant and toxic properties helps keep them away, the researchers reported in the Public Library of Science journal PLoS ONE.

They estimate that DDT spray reduced the risk of disease transmission by nearly three-quarters.

And yet, because it kills insects, which are eaten by birds, who injest the insects, as well as the DDT, which in turn softens the bird’s eggs, the early version of the eco-socialist left banned it’s use, killing 30 Million African children in the decades since it’s manufacture was cut to nearly zero in America, causing available supplies to drop to near zero.