The presence of Geosmithia morbida, the causal agent of Thousand Cankers Disease, has been detected in Indiana on the weevil Stenomimus pallidus. The walnut twig beetle (Pityophthorus juglandis) has also been detected at a different location.
The Indiana Department of Natural Resources issued a quarantine order on August 30, 2010, to prevent the introduction of TCD into Indiana. A final rule was issued on May 22, 2013.
- Walnut Twig Beetle detected in Indiana
- Geosmithia morbida detected in Indiana
- Thousand Cankers Disease Final Rule (PDF)
Report a suspected find of TCD by notifying the Indiana Department of Natural Resources, Division of Entomology and Plant Pathology, by calling 1-866-NOEXOTIC (1-866-663-9684) or by sending an email to firstname.lastname@example.org. Please include your contact information, a description of the symptoms you have observed, and the location of the suspect tree.
- Geosmithia morbida, the causal agent of the Thousand Cankers Disease, found in Indiana
- Indiana DNR Entomology & Plant Pathology TCD website
- Purdue University Plant and Pest Diagnostic Laboratory
- Indiana Quarantine for TCD of Black Walnut Trees (PDF)
Source: Indiana Department of Natural Resources and Purdue University
- Learn about the risks of transporting firewood and help prevent the spread of invasive pests and diseases.
- Resources to identify black walnut and thousand cankers disease can be found in our section for general information about TCD
- Brief answers to many common questions about the symptoms, diagnostics, management, and prevention of the thousand cankers disease complex may be found in our frequently asked questions section
We suggest you first try reporting TCD using the contacts listed under "Report TCD" above as these contacts are likely directly involved with monitoring TCD in your state.
If no contacts are listed you may also try reporting any suspected finds of TCD in your state to your state member of the National Plant Board, your State Department of Agriculture, State Forester, or Cooperative Extension Office.