EPPO Global Database

Pityophthorus juglandis(PITOJU)

Distribution details in United States of America

Current pest situation evaluated by EPPO on the basis of information dated 2013: Present, restricted distribution
From CABI Pest map 784 (2014): Present, no details
EPPO Reporting Service (2014/002) : widespread branch dieback and mortality of Juglans nigra has been occurring in Western USA since the mid-1990s. In 2008, this mortality was determined to be the result of a combination of 2 pests: Geosmithia morbida and its insect vector (Pityophthorus juglandis). P. juglandis is thought to originate from Southwestern USA (where it was considered as a minor pest of Juglans major). It is suspected that its spread towards the Eastern part of the USA took place rather recently (i.e. during the last 20 years).
* Grant GF, Windham MT, Haun WG, Wiggins GJ, Lambdin PL (2011) Initial assessment of thousand cankers disease on black walnut, Juglans nigra, in Eastern Tennessee. Forests 2, 741-748.

* Kolarík M, Freeland E, Utley C, Tisserat N (2011) Geosmithia morbida sp. nov., a new phytopathogenic species living in symbiosis with the walnut twig beetle (Pityophthorus juglandis) on Juglans in USA. Mycologia 103(2), 325-332.

* Luna EK, Sitz RA, Cranshaw WS, Tisserat NA (2013) The effect of temperature on survival of Pityophthorus juglandis (Coleoptera: Curculionidae). Environmental Entomology 42(5), 1085-1091.

* Seybold SJ, Coleman TW, Dallara PL, Dart NL, Graves AD, Pederson LA, Spichiger SE (2012) Recent collecting reveals new state records and geographic extremes in the distribution of the walnut twig beetle, Pityophthorus juglandis Blackman (Coleoptera: Scolytidae), in the United States. Pan-Pacific Entomologist 88(2), 277-280.

* Wood SL Bright DE (1992) A catalog of Scolytidae and Platypodidade (Coleoptera). Part 2: Taxonomic index - volume B. Great Basin Naturalist Memoirs 13, p 1005.
Situation in neighbouring countries
Country State Status
Mexico Present, no details view...