Resource Search 1 | National Invasive Species Information Center

North Carolina Department of Agriculture and Consumer Services. North Carolina Forest Service.
Thousand cankers disease is a fungal disease of walnuts (Juglans spp.) that is carried from tree to tree by a small bark beetle called the walnut twig beetle (Pityophthorus juglandis). It has killed countless ornamental black walnut trees in the western U.S. and was found for the first time in the eastern U.S. in 2010. The first recorded incident of thousand cankers disease in North Carolina (Haywood County) was confirmed in late fall, 2012. Please report the location and descriptions of potentially positive trees to 1-800-206-9333 or newpest@ncagr.gov.

University of Missouri. Extension.
Although not yet detected here, thousand cankers disease (TCD) is a potentially fatal disease of black walnut, caused by the walnut twig beetle (Pityophthorus juglandis) and an associated fungus (Geosmithia morbida). TCD could easily spread to Missouri from the several eastern and western states where TCD is already present. You can help minimize the chances of spreading TCD by following these steps:
- Don't move firewood
- Don't transport walnut for woodworking (including buying walnut wood over the Internet)
- Promptly report dead or dying walnut trees

Maryland Department of Agriculture.
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 WTB), Pityophthorus juglandis. On January 12, 2015, the the Maryland Secretary of Agriculture issued a quarantine order to minimize the risk of moving infested material out of the limited action area in Cecil County, and to provide confidence in Maryland walnut products moving into neighboring states from non quarantined areas. The 2015 quarantine order has been updated to include all of Baltimore City and part of Baltimore County [PDF, 1.2 MB]. The new quarantine [PDF, 1.0 MB] was signed on May 1, 2019 by the Maryland Secretary of Agriculture.

North Carolina Department of Agriculture and Consumer Services. North Carolina Forest Service.
Emerald ash borer, laurel wilt disease, thousand cankers disease, and the European gypsy moth are likely to be brought into North Carolina in or on firewood. The use of local firewood is an important factor in preventing the spread of potentially devastating invasive species to our state's forests. Please keep this in mind as you prepare for your outdoor recreation activities. See Forest Health Invasive Pest Maps for more information about pest monitoring.