| Extra-Sexy Fruit Flies Protect Crops |
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| Written by Heather McKee | |
| Tuesday, 03 February 2009 | |
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For over fifty years, the fruit fly and other produce pests have been controlled with not only pesticides, but sterile males. The sterile male thing works like this: Males of the pest species are irradiated in a laboratory and released, in hopes that they will be sexy enough to outcompete fertile males, rendering female fruit fly eggs infertile, and breaking the cycle of outbreak. Unsurprisingly, irradiated flies aren't so good at anything, including being sexy and outcompeting healthy fruit flies. In fact, scientists have to release 100 sterile males for every 1 wild, virile male in order to make an impact on fruit fly populations. But German scientists have found a way to control a male's sterility without irradiation - by engineering fruit fly genomes to direct embryonic suicide. Apparently, the Medfly (we're assuming a big fat patent here) is 10 times "sexier" than an irradiated male to female fruit flies. Of course, research into more efficient non-toxic pest control methods is great, but genetic engineering even of this sort still begs discussion of the ethics of ownership of life, as well as ecological discussions of snowballing impacts of genetically engineered organisms being released into the wild. Via Science Comments (52)
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It's true what our moms said...we are what we eat. In fact, it's truer than they thought. What I eat doesn't just affect me anymore, it affects all of us.
Unfortunately, the story of food can sometimes be complicated. But envirovores help each other out...which is why this blog will be bringing you news, tips, and information about food and the environment every step of the way.
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It's Tricia! You know, the short-timer at the Hike Inn. Even in my short time there, I learned so much from you. =)
I came across EnviroVore via EnviroWonk and I've added you to my blogroll at oklavore.com. I'm in Oklahoma now.
Creating sterile fruit flies? What will they think of next? Unfortunately, probably lots.
Would love to hear from you.