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Old 04-06-2003, 09:44 AM
Oz
 
Posts: n/a
Default Insects thrive on GM 'pest-killing' crops

Jim Webster writes

Someone
Any integrated pest management user knows that pesticides and
beneficial insects are not very compatible.


exactly, but your argument is as much in support of GM with its lesser
pesticide use as it is against GM. Remember the alternative to GM is not
organic but other conventional


Actually pesticides are pretty useful for integrated pest management.
If you can take out the incoming pest's first generation in the field
then typically they will breed in the field margins, along with their
predators. Sometimes that is enough to ensure a good population of
predators entering the crop at the same time as the second generation of
pests. Damage is thus reduced to the level you don't have to worry about
it.

That's typically why aphids in UK cereals only need autumn, or perhaps
autumn+very-early-spring aphicides in most years (in practice pretty
well every year).

--
Oz
This post is worth absolutely nothing and is probably fallacious.
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