Technical Publications
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
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
August 08, 2017
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
May 16, 2017
Cold Tolerance of Pityophthorus juglandis (Coleoptera: Scolytidae) From Northern California
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
Plant Diesase
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
January 24, 2015
2015 Survey and Sampling Guidelines for TCD
USDA Forest Service, Plant Protection and Quarantine
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
Forest Pathology
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 09, 2013
Efficacy of Heat Treatment for the Thousand Cankers Disease Vector and Pathogen in Small Black Walnut Logs
Read More
March 13, 2013
Detecting and Identifying the Walnut Twig Beetle: Monitoring Guidelines
University of California Agriculture and Natural Resources Statewide IPM Program
Read More
March 01, 2013
Quick Guide: Installing, Maintaining, and Servicing Walnut Twig Beetle Pheromone-baited Traps
University of California Agriculture and Natural Resources Statewide IPM Program
Read More
Field Identification Guide: Walnut Twig Beetle and Thousand Cankers Disease
University of California Agriculture and Natural Resources Statewide IPM Program
Read More
January 01, 2013
Sanitation Measures to Control Walnut Twig Beetle (Pityophthorus juglandis) Emergence from Felled Black Walnut Logs
Colorado State University, Bioagricultural Sciences and Pest Management
Read More
March 01, 2011
2011 PPQ Activities for TCD
USDA and Animal and Plant Health Inspection Service
Read More
Method for Isolating and Maintaining Cultures of Geosmithia from Juglans nigra
Colorado State University, Bioagricultural Sciences and Pest Management
Read More
January 05, 2011
APHIS Assessment of the Movement of Firewood within the United States
USDA and Animal and Plant Health Inspection Service
Read More
January 01, 2011
National Response Framework for Thousand Cankers Disease on Walnut
Animal and Plant Health Inspection Service
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
Tennessee Department of Agriculture
Read More
March 01, 2010
Nebraska’s Forest Resources, 2008
USDA Forest Service, Northern Research Station
Read More
November 01, 2009
TCD Economic Assessment for Missouri
Missouri Department of Conservation
Read More
October 19, 2009
TCD Pathway Assessment
USDA and Animal and Plant Health Inspection Service
Read More
March 01, 2009
Kansas Surveying and Sampling for TCD of Walnut
Kansas Department of Agriculture
Read More
January 01, 2009
Effect of debarking and heating on survival of the thousand cankers disease vector and pathogen in black walnut logs
Mayfield et al.
Read More