Agriculture tends to mess up native flora and fauna, as well. Hi teck
ag, moreso than organic. The cost to mother earth for her human
children is very high. For an interesting paper on the toll of
agriculture on evolution, see this page
http://www.ergonica.com/downloads.htm.

Ultimately, the more we tinker with nature the more likely we will see
the day when the more simple species (weeds and bugs) will ultimately
recover all that the intelligent predators and consumers have taken.

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EWIRM: Pull out weeds respectfully.
www.ergonica.com