Government Organizations

A gateway to Federal and State Invasive Species Programs
http://www.invasivespecies.gov/

APHIS Invasive Species and Pest Management
http://www.aphis.usda.gov/ppq/ispm/

APHIS Pest Detection and Management Programs
http://www.aphis.usda.gov/ppq/ep/index.html

Federal Noxious Weed Program
http://www.aphis.usda.gov/ppq/weeds/

National Agricultural Pest Information Survey: A database for the Cooperative Agricultural Pest Survey
http://ceris.purdue.edu/napis/

Invasive Species Information node maintained by the Center for Biological Informatics of the U.S. Geological Survey
http://invasivespecies.nbii.gov/