Walnut twig beetle in the forest: Implications for spread of thousand cankers disease

Monday, March 3, 2014: 2:28 PM
Spartanburg (Embassy Suites Greenville Golf & Conference Center)
Gregory J. Wiggins , Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN
Jerome F. Grant , Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN
Paris L. Lambdin , Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN
Paul Merten , Forest Health Protection, USDA Forest Service, Asheville, NC
Mark T. Windham , Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN
Danny Johnson , Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN
Katheryne Nix , Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN
Thousand cankers disease (TCD) is an insect-mediated disease of walnuts (Juglans spp.) involving the walnut twig beetle (Pityophthorus juglandis) and a fungal pathogen (Geosmithia morbida). Although it was first documented on walnut species in the western U.S., TCD is now found on black walnut (J. nigra) in five states in the eastern U.S. Most of the collections of P. juglandis or G. morbida are from trees in developed landscapes, but can TCD also occur on forested walnut trees? Collections of P. juglandis will be presented and implications for the spread of TCD will be discussed.
See more of: Contributed Papers I: Medical, Urban & Veterinary Entomology; Physiology, Biochemistry & Toxicology; Systematic, Evolution & Biodiversity; P-IE - Plant Disease Vectors
See more of: Ten Minute Paper (TMP) Oral
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