Exotic Pest Reporting
Ned Tisserat, Colorado State University, Bugwood.org
Thousand cankers disease
Thousand cankers disease (Geosmithia morbida) is a fungal pathogen of Black Walnut. It was first detected in New Mexico in 2001.
Transmitted by the Walnut Twig Beetle, this disease is devastating Black Walnut Trees in the Western United States. The first infestation east of the Mississippi was detected in Tennessee in the summer of 2010. This is just one of many forest diseases that is moved to un-infested forests by humans moving firewood. Help protect our forest treasures: don't move firewood!
06/03/2019 - Why the dying walnut trees?
02/07/2019 - Sorry tree lovers, it wasn't cold enough
09/28/2018 - Mysterious disease affecting trees in the city
04/05/2016 - Thousand Cankers Disease Survey Guidelines Available
05/06/2015 - There is a disease - should I sell my trees
08/15/2014 - Kansas, Missouri on Watch for Invasive Pests
07/01/2014 - Third Apple Moth triggers quarantine for Ukiah
07/01/2014 - Thousand Canker Disease affects walnut trees
04/16/2014 - Exotic Pests Invade California Landscapes