The United States Department of Agriculture’s Forest Service and Plant Protection and Quarantine have published online the Thousand Cankers Disease Survey Guidelines for 2016. The guidelines provide standardized techniques for surveys of TCD. To view the guidelines click here.
Thousand cankers disease (TCD) is a disease complex that threatens millions of black walnut trees (Juglans nigra) in forests and urban areas in the United States. The disease is the result of the combined activity of a fungus (Geosmithia morbida) and the walnut twig beetle (Pityophthorus juglandis).
For further information on TCD, refer to the Web site http://www.thousandcankers.com or contact William Wesela, National Policy Manager, 301-851-2229,William.D.Wesela@aphis.usda.gov; or, Bruce Moltzan, National Program Leader, Forest Pathology, 703- 605-5336, firstname.lastname@example.org.
To see the pest alert produced by the national IPM centers click here.