Learn more about TCD in your state





National and State Maps of TCD

National and State Maps


Effective controls for TCD have not yet been identified and their development will require better understanding of the biology of the walnut twig beetle and the fungus. Rapid detection and removal of infected trees currently remains the primary means of managing TCD. Stopping or slowing its spread from infested areas relies on quarantines of wood products and public education.

You can help minimize the chances of spreading TCD by:

Latest News

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

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

PA expands TCD quarantine to include Lancaster County. - Nov. 03, 2014

TCD fungus found on S. pallidus weevil in Indiana. Walnut twig beetle not yet detected. - Jun. 19, 2014

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