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To decrease sprays of broad-spectrum insecticides, which can harm animals other than the target pests, cotton and corn have been genetically engineered to produce toxins derived from the bacterium Bacillus thuringiensis, or Bt.
Over time, scientists have learned, initially rare genetic mutations that confer resistance to Bt toxins are becoming more common as a growing number of pest populations adapt to Bt crops.
They found some resistance-conferring mutations in the field were the same as in lab-reared pests, but some others were strikingly different.
stay ahead of the game
Originally posted by chasingbrahman
The most valuable thing taught to me when young is that if something seems too good to be true, look closer.
Wish all those farmers had looked closer. Big fixes are never easy.
Originally posted by Romekje
No, we cant, but it's not nature we're trying to stay ahead off, we started this race ourselves, nature is just responding.
My friend, the Earth will destroy man long before man can destroy Earth
these mooks are playing with fire and we (the collective WE) are the tinder. The bill is coming due, and will be collected here pretty soon.
Originally posted by JibbyJedi
The best I can hope for is 65 at this point.
They spent all our SS money, so logically they want us dead by retirement age,
He emphasized the importance of the ongoing collaboration for addressing resistance to Bt crops, which is a major issue in China.
when you insert yourself into these various but commonly defined areas, you are assured that you have an on-going, evolving market because nature operates that way and always will
Originally posted by acmpnsfal
I dont understand the issue here. Most of the time, crops are tinkered with to make life easier for farmers. I mean lets take this case for example. The cotton was modified to cut down on the spraying of insecticides. Insecticides are extremely harmful to the environment So tinker, new crop with built in defense. Naturally the insects will adjust, such is nature. All that means is back to the drawing board to find a new way to protect the crops. Why is this an issue?
These ladybird larvae are typical 'non-target' environmental goods which are not supposed to be harmed
Bt toxin produced in GM crops is not the same as the natural Bt toxin. The process of genetic engineering changes it (as is admitted even by the pro-GM website GMO Safety). And testing is not actually performed on the Bt toxin extracted from GM plants, which would be the scientific way, as it is claimed that it is too expensive to isolate. Instead, testing is done on Bt toxin isolated from E. coli bacteria (as is the norm for GM risk assessments). The protein would be different from that present in the actual GM crop.