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The Naked Scientists Podcast

Repelling Pests - Mosquitoes, Moths and Weeds

The Naked Scientists Podcast

Dr Chris Smith

Science Radio, Engineering, Naked Scientists, Natural Sciences, Technology, Life Sciences, Health & Fitness, Medicine, Science

4.6957 Ratings

🗓️ 10 May 2008

⏱️ 65 minutes

🧾️ Download transcript

Summary

Using nature's own tricks, we find out how to avoid mosquito bites, grow more crops and keep the weeds away in this week's Naked Scientists. We find out why mosquitoes prefer some people to others, and how to use pheromones to turn an insect's sex-drive against it! Also, why dentists could use plasma to cut down on drilling, why breast is best for bigger brains and why Popeye was right, spinach really does make you stronger. Plus, in Kitchen Science, we brave a box of biting mozzies to see if insect repellent really does repel! Like this podcast? Please help us by supporting the Naked Scientists

Transcript

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0:00.0

It's science, but not as you know it, the naked scientists.

0:10.0

Hello, welcome to this week's naked scientists we meet Chris Smith and also with

0:14.0

Dave Ansel. Hi Dave. Hi Chris. Now coming up we're going to be finding out how

0:17.3

scientists have found a clever way to take the sting out of dentistry and

0:20.9

they're using a plasma gun to do it. Also a new kit to make

0:24.3

homemade bioethanol in your garage, not sure about the legality of that one and why

0:28.1

Popeye was right about spinach all along. They're scientific proof now that it

0:31.5

really does make your muscles stronger.

0:33.0

That's all on the way, Dave.

0:34.0

Thanks, Chris. Also this week we're finding out about mosquitoes, how they use smells to home in on us,

0:39.0

and how we can use other smells to ward them off.

0:41.0

We'll also be hearing how farmers can use natural

0:43.3

smells to keep pests off their crops. Plus Mira has been finding out how

0:47.5

understanding an insect's mating habits can also make them much easier to

0:50.4

catch. The powder in this case contains pheromone and the idea with this

0:54.4

one is the males fly in get covered in the powder which contains the female

0:58.3

sex pheromone fly off and they now smell like a female. This causes massive mating disruption.

1:04.4

I love that so there's going to be a male flying around with just loads of

1:08.2

other males following them around. That's right that's the sort of thing we hope will

1:11.8

happen with this sort of control

1:13.0

I've got a few friends who probably like some of that stuff. We'll catch the buzz on that one later

1:16.7

also you might need to put your fingers in your ears for this week's question of the

...

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