USDA-APHIS: Track the threat of Hungry Pests.
The Pest Tracker map can be used to see where invasive species have been identified and what areas in the United States are at greatest risk.
The interactive map is a joint effort of the USDA's Animal and Plant Health Inspection Service and state and county agencies throughout the country. The Pest Tracker is updated frequently and provides an easy to use overview of the latest local invasive species spread information. You can also use the map to find state-specific contact information to report a pest for all 50 states. With the links at left, you can see state detail pages with information on specific pests, official state contacts, and what's at risk.