Comment by chicob

The fact that no one can remember a reason for why mosquitoes should not be exterminated is not a reason in favor of total extermination.

The Four Pests Campaign is thought to have contributed significantly for the death of around 30 million people in China.

And fish eat mosquito larvae. So there's that. Anyone observing larvae in a pond's surface will notice that they will shake and dive whenever a change in lighting occurs. That tells me that they probably have non-aquatic predators. I'm gessing dragonflies, although I suspect these insects only prey on adult mosquitos.

I'm not sure of this. And that is exactly the point, because Google must be completely sure of what is doing.