May 18, 2021
2021 Thousand Cankers Disease Survey Guidelines
Read More
March 17, 2020
2020 Thousand Cankers Disease Survey Guidelines
Read More
March 01, 2020
The Effects of Weather on the Flight of an Invasive Bark Beetle, Pityophthorus juglandis
Read More
October 14, 2019
Seed Propagation Protocol for Pure and Hybrid Butternut (Juglans cinerea L.)
Read More
August 20, 2019
Host selection behavior mediated by differential landing rates of the walnut twig beetle, Pityophthorus juglandis, and associated subcortical insect species, on two western North American walnut species, Juglans californica and J. major
Read More
June 24, 2019
Detection of Geosmithia morbida on Numerous Insect Species in Four Eastern States
Read More
May 30, 2019
Assessment of Alternative Candidate Subcortical Insect Vectors From Walnut Crowns in Habitats Quarantined for Thousand Cankers Disease
Read More
Detection of Geosmithia morbida on Numerous Insect Species in Q:1 Four Eastern States
Read More
May 29, 2019
Effect of Bark Application With Beauveria bassiana and Permethrin Insecticide on the Walnut Twig Beetle (Coleoptera: Curculionidae) in Black Walnut Bolts
Read More
May 15, 2019
Unwelcomed stowaways and their role in thousand cankers disease spread
Read More
The potential for pesticide trunk injections for control of thousand cankers disease of walnut
Read More
February 20, 2019
Methyl Bromide Fumigation to Eliminate Thousand Cankers Disease Causal Agents from Black Walnut
Read More
February 18, 2019
Geosmithia Species in Florida: Common Fungal Symbionts of Wood-Boring Bark Beetles
Read More
February 15, 2019
Geosmithia species in southeastern USA and their affinity to beetle vectors and tree hosts
Read More
August 24, 2018
Thousand cankers disease photos
Read More
Thousand cankers disease photos on Google Images
Read More
August 21, 2018
Learn about the risks of moving firewood
Read More
Thousand Cankers Disease at ProtectTNForests.org
Read More
Oregon State University Extension Online Guide to TCD
Read More
Purdue University Plant & Pest Diagnostic Laboratory
Read More
Missouri Department of Conservation TCD website
Read More
Colorado State University, Department of Bioagricultural Sciences and Pest Management website for TCD
Read More
University of California Integrated Pest Management TCD Site
Read More
USDA National Agricultural Library TCD Website
Read More
April 30, 2018
Insects collected from wood infested with Pityophthorus juglandis Blackman (Coleoptera Curculionidae Scolytinae) in the Piemonte region, Northwestern Italy
Read More
March 25, 2018
2018 survey guidelines now available
Read More
March 01, 2018
Reproduction and potential range expansion of walnut twig beetle across the Juglandaceae
Read More
February 15, 2018
Mycobiota associated with insect galleries in walnut with thousand cankers disease reveals a potential natural enemy against Geosmithia morbida
Read More
January 05, 2018
A novel molecular toolkit for rapid detection of the pathogen and primary vector of thousand cankers disease
Read More
November 22, 2017
Comparative Genomics of Pathogenic and Nonpathogenic Beetle-Vectored Fungi in the Genus Geosmithia
Read More
November 15, 2017
Behavioral Responses of Pityophthorus juglandis (Coleoptera: Curculionidae: Scolytinae) to Volatiles of Black Walnut and Geosmithia morbida (Ascomycota: Hypocreales: Bionectriaceae), the Causal Agent of Thousand Cankers Disease
Read More
September 06, 2017
Michigan Seeks Comments on Proposed Revision to TCD Quarantine
Read More
August 08, 2017
Presentations from June 2017 meeting now online
Read More
Mortality and reduced brood production in walnut twig beetles, Pityophthorus juglandis (Coleoptera: Curculionidae), following exposure to commercial strains of entomopathogenic fungi Beauveria bassiana and Metarhizium brunneum
Read More
June 15, 2017
Thousand Cankers Disease Research and Management Operational Meeting
Read More
May 16, 2017
Cold Tolerance of Pityophthorus juglandis (Coleoptera: Scolytidae) From Northern California
Read More
April 21, 2017
TCD Research & Management Operational Meeting June 13-15, 2017
Read More
January 18, 2017
Genomic comparison of Geosmithia morbida isolates from genetically distinct clusters
Read More
November 03, 2016
Thousand Cankers Disease Complex: A Forest Health Issue that Threatens Juglans Species across the U.S.
Read More
October 20, 2016
Virulence of Genetically Distinct Geosmithia morbida Isolates to Black Walnut and Their Response to Coinoculation with Fusarium solani
Read More
July 19, 2016
Thousand cankers disease in Europe: an overview
Read More
June 02, 2016
First report of Geosmithia morbida on ambrosia beetles emerged from thousand cankers-diseased Juglans nigra in Ohio
Read More
March 02, 2016
De novo genome assembly of Geosmithia morbida, the causal agent of thousand cankers disease
Read More
December 12, 2015
Life history and geographical distribution of the walnut twig beetle, Pityophthorus juglandis (Coleoptera: Scolytinae), in southern Europe
Read More
August 28, 2015
Phytosanitation Methods Influence Posttreatment Colonization of Juglans nigra Logs by Pityophthorus juglandis (Coleoptera: Curculionidae: Scolytinae)
Read More
July 08, 2015
Wingnut (Juglandaceae) as a new generic host for Pityophthorus juglandis (Coleoptera: Curculionidae) and the thousand cankers disease pathogen, Geosmithia morbida (Ascomycota: Hypocreales)
Read More
April 09, 2015
Walnut Twig Beetle Detected in Indiana
Read More
January 24, 2015
2015 Survey and Sampling Guidelines for TCD
Read More
January 12, 2015
MD implements TCD quarantine in Cecil County
Read More
November 06, 2014
Status of thousand cankers disease on eastern black walnut in the eastern United States at two locations over 3 years
Read More
June 19, 2014
TCD fungus found on S. pallidus weevil in Indiana. Walnut twig beetle not yet detected.
Read More
May 28, 2014
Discovery of Walnut Twig Beetle, Pityophthorus juglandis, Associated with Forested Black Walnut, Juglans nigra, in the Eastern U.S.
Read More
December 11, 2013
First record of TCD in Europe
Read More
December 09, 2013
Efficacy of Heat Treatment for the Thousand Cankers Disease Vector and Pathogen in Small Black Walnut Logs
Read More
June 06, 2013
Additional Walnut Twig Beetles detected in Butler County, OH
Read More
June 01, 2013
May TCD Webinar recordings now available
Read More
May 18, 2013
April TCD webinar recordings now available
Read More
April 02, 2013
March TCD recording now available
Read More
March 13, 2013
Detecting and Identifying the Walnut Twig Beetle: Monitoring Guidelines
Read More
March 01, 2013
Quick Guide: Installing, Maintaining, and Servicing Walnut Twig Beetle Pheromone-baited Traps
Read More
Field Identification Guide: Walnut Twig Beetle and Thousand Cankers Disease
Read More
February 01, 2013
USDA Thousand Cankers Disease Pest Alert
Read More
January 02, 2013
NC amends exterior quarantine due to TCD findings in Haywood County
Read More
January 01, 2013
Sanitation Measures to Control Walnut Twig Beetle (Pityophthorus juglandis) Emergence from Felled Black Walnut Logs
Read More
October 18, 2012
New phone app lets you report invasive species
Read More
September 06, 2012
Ohio implements exterior quarantine for TCD
Read More
July 12, 2012
Walnut Twig Beetle and TCD Disease of Black Walnut
Read More
April 26, 2012
Thousand Cankers Disease: Methods and Research and Technology Development Needs Assessment Workshop
Read More
February 01, 2012
Illinois TCD Factsheet
Read More
January 21, 2012
Thousand Cankers a walnut killer
Read More
December 01, 2011
Indiana TCD bulletin
Read More
August 01, 2011
Walnut Thousand Cankers Disease Alert
Read More
Utah TCD of Walnut Fact Sheet
Read More
July 06, 2011
More research needed for TCD in California walnuts
Read More
March 01, 2011
2011 PPQ Activities for TCD
Read More
Method for Isolating and Maintaining Cultures of Geosmithia from Juglans nigra
Read More
January 05, 2011
APHIS Assessment of the Movement of Firewood within the United States
Read More
January 01, 2011
National Response Framework for Thousand Cankers Disease on Walnut
Read More
Walnut twig beetle: update on the biology and chemical ecology of a vector of an invasive fatal disease of walnut in the western U.S.
Read More
October 25, 2010
Tennessee TCD Action Plan
Read More
August 31, 2010
Oklahoma Emergency Quarantine for Thousand Cankers Disease
Read More
March 01, 2010
Nebraska’s Forest Resources, 2008
Read More
November 01, 2009
TCD Economic Assessment for Missouri
Read More
October 19, 2009
TCD Pathway Assessment
Read More
March 01, 2009
Kansas Surveying and Sampling for TCD of Walnut
Read More
January 01, 2009
Effect of debarking and heating on survival of the thousand cankers disease vector and pathogen in black walnut logs
Read More