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A Low-Tech Mosquito Deterrent

nytimes.com

61–70 of 195 posts

Re: A Low-Tech Mosquito Deterrent

#61
I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be.

If we could quantify that, and the outcome was enticing, we could release a bunch of genetically modified sterile mosquitoes that would quickly erase whole populations.

Re: A Low-Tech Mosquito Deterrent

#62

I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be. If we could quantify that, and the outcome was enticing, we could release a bunch of genetically modified sterile mosquitoes that would quickly erase whole populations.

I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be.

A scientist has considered that issue, and the conclusion is that we could all live quite happily without any mosquitoes in the world.

http://www.nature.com/news/2010/100721/full/466432a.html

Re: A Low-Tech Mosquito Deterrent

#63

I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be. If we could quantify that, and the outcome was enticing, we could release a bunch of genetically modified sterile mosquitoes that would quickly erase whole populations.

Why would releasing sterile mosquitoes help erase the population? Do they eat each other or something?

Re: A Low-Tech Mosquito Deterrent

#64

I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be. If we could quantify that, and the outcome was enticing, we could release a bunch of genetically modified sterile mosquitoes that would quickly erase whole populations.

How would a GM but sterile mosquito help? It can't pass its unique trait to offspring.

Re: A Low-Tech Mosquito Deterrent

#65
post #54

Didn't someone come up with a blend of things (poison and flower scents) that claimed to eradicate every mosquito in a X mile radius? Whatever happened of that? Why haven't we been able to make something that'll attract large amounts of them and kill them?

It was fruit juice and boric acid.. not sure what came of it. http://www.nytimes.com/2011/09/27/health/27mosquito.html

This article in MotherEarthNews had a commenter who stated that this trap also attracted other insects, including bees (which the boric acid is also fatal to). So, even if it is effective, unfortunately it seems that it's too indiscriminate.

http://www.motherearthnews.com/diy/homemade-mosquito-trap-zm...

Re: A Low-Tech Mosquito Deterrent

#66
post #64

I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be. If we could quantify that, and the outcome was enticing, we could release a bunch of genetically modified sterile mosquitoes that would quickly erase whole populations.

How would a GM but sterile mosquito help? It can't pass its unique trait to offspring.

The sterile males compete with the rest of the population, which drops off the population as mating produces no offspring. This has been attempted with good results in several cases:

http://www.bbc.co.uk/news/science-environment-14422440 http://en.wikipedia.org/wiki/Sterile_insect_technique

Re: A Low-Tech Mosquito Deterrent

#67

I wonder what the impact of completely eliminating mosquitoes from the ecosystem would be. If we could quantify that, and the outcome was enticing, we could release a bunch of genetically modified sterile mosquitoes that would quickly erase whole populations.

Why would releasing sterile mosquitoes help erase the population? Do they eat each other or something?

Sterilize & release programs for feral cats work; the sterilized cats compete for the same resources as unsterilized ones, but are more effective and longer-lived because they don't have to support reproduction. This not only means that the sterilized cats won't reproduce, but the unsterilized ones will have a harder time, and reproduce less.

It works better than trapping & killing.

Re: A Low-Tech Mosquito Deterrent

#69
post #64

Earlier quoted context omitted.

How would a GM but sterile mosquito help? It can't pass its unique trait to offspring.

The sterile males compete with the rest of the population, which drops off the population as mating produces no offspring. This has been attempted with good results in several cases: http://www.bbc.co.uk/news/science-environment-14422440 http://en.wikipedia.org/wiki/Sterile_insect_technique

Ok, that's how I thought it would work (though "genetically modified" might be the wrong term here, as in those cases sterility comes from direct processes like radiation). I'm astonished that it would be considered feasible given the magnitude of the mosquito population (I'm assuming at least trillions). To cut the mosquito population in half for a generation, you'd need to replace half of the males on the planet, would you not? Or at least make half of the females choose to mate with the modified males.

Then rinse and repeat.

Re: A Low-Tech Mosquito Deterrent

#70

Although it isn't common knowledge, the recommended best practice for avoiding ticks and other bugs is soaking your clothes in Permethrin: http://www.youtube.com/watch?v=W3sGvZE3rh4 It isn't very well absorbed through the skin so it has an extremely low toxicity when used in this way, as long as you don't breathe it in or let it get on your skin while it's still wet. It's much more effective and less toxic than DEET,…

> Also don't ever mix it with DEET, because the combination is neurotoxic.

Holy crap. I must know 100 people who regularly wear Permethrin-treated clothes and then spray on DEET repellent. I had no idea it was dangerous.

(FWIW, I avoid them both due to general conservatism when it comes to toxic chemicals, especially when the stakes are low -- i.e., the worst-case is itching and not malaria.)

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