America's Least Wanted Creatures

Help!

The Most Wanted Invasive, Unwanted pest in Corning is the Olive Fruit Fly. The Olive Industry in Corning is trying to control this infestation. The Corning community depends on olive production and sales for a healthy economy. If we don't control this alien and other invaders, then our world,will turn into a nightmare.
It is your task to identify "America's Least Wanted Aliens". Who are they? How did they get here? What can we do about them? Here a few websites that will help you identify these least wanted invaders:

http://alic.arid.arizona.edu/invasive/sub7/index.shtml (teacher)

http://nas.er.usgs.gov/queries/

http://www.invasivespeciesinfo.gov/animals/main.shtml

http://dnr.wi.gov/invasives/

http://library.thinkquest.org/03oct/01507/

http://library.thinkquest.org/03oct/00946/accounts/reptiles.htm#turtle