Or you could spray.

So you've got traditional things like pepper spray, O.C. spray up at the top there, or Tasers over here.

You create a spray of detergent.

You saw the spray going in.

Mary carries pepper spray in her purse.

So one of the things I particularly looked at was the use of O.C. spray, oleoresin capsicum spray, pepper spray, by Australian police and seeing when that had been introduced, what had happened and those sorts of issues.

Then the spray dries. It turns into powder.

That's going to spray cells over that area.

Once you've got the mosquito in your area, anyone coming into that area with dengue, mosquito will bite them, mosquito will bite somewhere else, somewhere else, somewhere else, and you'll get an epidemic.

You could do the same with a space spray.

We got, later, the mosquito netting.

Minnesota's state bird is the mosquito.

I was bitten by a mosquito.

You can spray the problem is there are environmental issues.

There you are. We've sent mosquito eggs.

I got a lot of mosquito bites.

They control mosquito larvae, among other things.

What can we do to the mosquito?

I just got bitten by a mosquito.

So I actually spray painted a whole bunch of them brown.

You can spray paint it you can do anything you want.

This kind of genetically altered mosquito can help control the transmission of mosquito borne infectious diseases such as Zika, Dengue fever and Chikungunya fever.

They might be able to buy mosquito nets.

So for the mosquito, it's a dead end.

NM That's a mosquito wing beat you're hearing.

Now when they introduced O.C. spray in Queensland, they were really explicit.

Attempts to acquire specific spray dryers also failed for the same reason.

Now, malaria's transmitted by a mosquito, and normally if you're infected with malaria, and you're feeling sick, it makes it even easier for the mosquito to bite you.

But of course the most dangerous animal is the mosquito.

It's only the female mosquito that will actually bite you.

This is a high speed camera view of a mosquito.

And the mosquito has killed more humans than wars and plague.

So we've got that. You could call it a mosquito factory.

Well, they decided to mosquito proof every house in Northern Alabama.

To communicable diseases, it might be health clinics or mosquito nets.

They feed on other little things. They feed on mosquito larvae.

And when you clean a penguin, you first have to spray it with a degreaser.

If you mosquito proof houses, when people get sick, they're sitting in bed or in mosquito proof hospitals, they're sitting in a hospital bed and the mosquitoes can't get to them.

And let's assume you're bitten by a mosquito that's carrying that virus.

There's no point in just killing the odd mosquito here and there.

No evidence was obtained by the United Nations inspectors that Iraq had spray dried agent in bulk.

The mosquito has killed more humans than any other creature in human history.

In fact, probably adding them all together, the mosquito has killed more humans.

Well we clearly need something that is effective at reducing the mosquito population.

And the asterisks represent the time at which the mosquito proofing was complete.