And even if you couldconvince people to eat nutria — the South American swamp rat introduced in the 1960s to clear Louisiana's Mississippi Delta waterways of another
invasive species,
water hyacinth — there's no way they'd be able to catch up with the population, which has already wiped out whole swaths of native greenery.
The American landscape is a catalogue of noxious weeds and
invasive pests that have disrupted native ecosystems: Japanese kudzu in the South, African tamarisk in the Southwest, Amazonian
water hyacinth and Burmese pythons spreading through the Everglades, Russian zebra mussels choking the Great Lakes, Asian carp invading the Mississippi River system, and European brown rats everywhere.