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National and State Maps of TCD

National and State Maps
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Welcome to ThousandCankers.com! Interested in the latest news about thousand cankers disease? Read more..

Photo: Curtis Utley, CSUE, Bugwood.org

Thousand Cankers Disease is caused by the combined activity of a fungus (Geosmithia morbida) and the walnut twig beetle (Pityophthorus juglandis). Read more..

Photo: Curtis Utley, CSUE, Bugwood.org

Interested in purchasing or transporting walnut? Stay up to date with quarantines. Read more..

Photo: Whitney Cranshaw, Colorado State University, Bugwood.org

Need help with identification and the symptoms of TCD? Read more..

Photo: Whitney Cranshaw, Colorado State University, Bugwood.org

Welcome to Thousandcankers.com!

Our goal is to help you find answers to your questions about thousand cankers disease. Feel free to browse our content and send us some feedback if you find any errors, or have some content you would like to contribute. Remember to check back often as we update this site regularly with the latest information and developments on thousand cankers disease of walnut.

June 13-15, 2017 - Thousand Cankers Disease Research and Management Operational Meeting

This meeting will be held at the Courtyard by Marriott in Lafayette, Indiana. It is supported by the Central Plant Board , Southern Plant Board, USDA Forest Service Forest Health Protection, USDA Forest Service R&D, and the Hardwood Tree Improvement & Regeneration Center at Purdue University. Learn more

 

Thousand Cankers Disease Survey Guidelines

The Thousand Cankers Disease Survey Guidelines for 2017 and Thousand Cankers Disease Survey Forms are now available.

Thousand Cankers Disease

Thousand cankers disease (TCD) is a disease complex native to the western United States and primarily affects black walnut Juglans nigra. This disease is the result of the combined activity of a fungus (Geosmithia morbida) and the walnut twig beetle (Pityophthorus juglandis).

Thousand cankers disease currently threatens millions of black walnut trees in forests and urban areas, an important species with great economic and ecological value throughout its native range. Several quarantines have been established in an attempt to prevent the disease from spreading.

Our Partners

This site is a collaborative effort between the Northeastern Area State and Private Forestry, the USDA Forest Service Northern Research Station, the Purdue University Department of Forestry and Natural Resources, the Hardwood Tree Improvement and Regeneration Center, the American Walnut Manufacturers Association, and the Walnut Council.

Latest News

2017 survey guidelines now available - Apr. 25, 2017

TCD Research & Management Operational Meeting June 13-15, 2017 - Apr. 21, 2017

Walnut Twig Beetle Detected in Indiana - Apr. 09, 2015

MD implements TCD quarantine in Cecil County - Jan. 12, 2015

Read More TCD News...