RE: The politics of biotechnology

Jonathan Reeves (JonathanR@mail.iclshelpdesks.com)
Wed, 2 Jun 1999 09:03:08 +0100

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Anders Sandberg writes:

>  Sure, if everybody is using (say) bacillus thuringensis-based
> gm crops, then the evolutionary pressure for resistant pests will be
> very high and we can count on them appearing - parasitic relationships
> force both parts into a co-evolutionary spiral, and we humans better
> be a part of it for the species we like.

What about the species we dont like ?
If a species natural parasites can no longer successfully feed off it, they will adapt in 2 ways - 1 to overcome the gm plants defeneses and 2 into any other ecological niches they can. This will lead to a spiral of new gm crops and new parasites (which is fine if our labs can keep up) - but there will also be a spill over of the new resistant parasites onto plants which are not genetically modified. How do you protect the wild plants in this scenario ?

> It is likely better to have several different forms of pest resistance, so that no
> single resistant pest can take out all the plants and the pressure towards resistance > will be weakened. How to promote this diversity economically is an interesting
> extropian question.

Agreed. This would help a lot, but I'm not sure that commercial companies would be so willing to promote the necessary diversity.

On a related topic the EU looks to be moving to ban antibiotics in animal feed and sprayed onto fruit for similar reasons.



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Anders Sandberg writes:

>  Sure, if everybody is using (say) = bacillus thuringensis-based
> gm crops, then the evolutionary pressure for = resistant pests will be
> very high and we can count on them appearing - = parasitic relationships
> force both parts into a co-evolutionary spiral, = and we humans better
> be a part of it for the species we like.

What about the species we dont like ?
If a species natural parasites can no longer = successfully feed off it, they will adapt in 2 ways - 1 to overcome the = gm plants defeneses and 2 into any other ecological niches they = can.

This will lead to a spiral of new gm crops and new = parasites (which is fine if our labs can keep up) - but there will also = be a spill over of the new resistant parasites onto plants which are = not genetically modified.  How do you protect the wild plants in = this scenario ?



>  It is likely better to have several = different forms of pest resistance, so that no
> single resistant pest can take out all the = plants and the pressure towards resistance > will be weakened. How = to promote this diversity economically is an interesting

> extropian question.

Agreed.  This would help a lot, but I'm not = sure that commercial companies would be so willing to promote the = necessary diversity.


On a related topic the EU looks to be moving to ban = antibiotics in animal feed and sprayed onto fruit for similar = reasons.