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.
Thousand Cankers Disease Survey Guidelines
We have recently added the revised Thousand Cankers Disease Survey Guidelines for 2012 to our list of technical publications. This document provides guidance on standardized techniques for USDA Forest Service and Plant Protection and Quarantine supported surveys.
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, and the Walnut Council.
