Annual Survey Maps -

Hydrilla - Hydrilla verticillata

This map only represents pest survey data submitted to the NAPIS database by participating states for the year selected. This is not a distribution map; the map only displays one year of survey data at a time. CERIS and USDA-APHIS-PPQ do not certify the accuracy or completeness of this map.

If you wish to cite this map, please use the following format:

  • Center for Environmental and Research Information Systems (CERIS). Purdue University. "Survey Status of Hydrilla - Hydrilla verticillata ()." Retrieved from https://pesttracker.org/map.php?code=PCHAFBA
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  • Established by Consensus
  • Established by Survey
  • Not Found
  • Found
  • Being Eradicated
  • Eradicated
  • No Survey