TN Department of Agriculture

Thousand Cankers Disease
4:00 am
Fri November 8, 2013

Tree-killing Disease Continues To Show Up In More ET Counties

A black walnut tree with missing leaves near the top could be a sign that the tree is infected with Thousand Cankers Disease.

This week, the Tennessee Department of Agriculture added Rhea and Morgan counties to a list of East Tennessee counties under quarantine after the discovery of Thousand Cankers Disease in black walnut trees. 

Thousand Cankers Disease (TCD) is a condition that robs black walnut trees of their nutrients.  It’s transported from tree to tree by the Walnut Twig Beetle, a tiny bug that burrows into the tree, bringing with it a deadly fungus.   Experts suggest the tree can die within a few years of being infected. 

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