Main Content


Invasive Species

Exotic animal and plant pests are invading Indiana and multiplying, causing economic and visual damage. Fight back by learning the signs, reporting sightings and taking precautions.

Spot the threat

Aquatic (Water) Invasives

hydrilla aquatic invertebrates aquatic fish whirling disease, photo courtesy of Colorado Division of Wildlife

Terrestrial (Land) Invasives

purple loosestrife terrestrial invertebrates terrestrial vertebrates Thousand Cankers Disease of Black Walnut, photo courtesy of Ned Tisserate, Colorado State University

Report a sighting

DNR is looking for sighting information for select species. If you think you have seen an invasive species, report it: If possible, get a picture.

  1. Telephone: Call 1-866 NO EXOTIC (1-866-663-9684). You will be asked for your name, address, phone number, what species you think you have seen, what county it is in and what you have seen. If you call after hours, please leave a message or contact us by email.
  2. E-mail: If the species is a land species, send email to depp@dnr.IN.gov. Please include your name, address, phone number, what species you have seen, what county you have seen it in and what you have seen.
  3. Form: If the species is an aquatic (water) species, fill out the Aquatic Invasive Species Reporting form.

More information


Purdue University Publications

Purdue University Programs/Services