TM writes:
> that Iowa has lost almost 60 percent of its milkweed, and
>
another<http://www.sciencedirect.com/science/article/pii/S026121941000215
2
> found 90 percent was gone. “The agricultural landscape has been
sterilized,” said
> Dr. Brower.
Ironically Mexico has done a better job of late protecting their over
wintering sites--they can't afford to lose even a few more acres at
this point.
Loss of the host plants all along the migration path can't help-- and
this fact is sited in any study I've seen investigating the severe
population decline--- unintended consequence
of the Roundup ready seeds.
Mike
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