EPPO Global Database

Tsuga heterophylla(TSUHE)

Pests

Organism Type
Choristoneura rosaceana (CHONRO) Doubtful host
* Llewellyn-Jones JRJ (1935) Some food plants of lepidopterous larvae. Proceedings of the Entomological Society of British Columbia 31, 28-32. 

* Prentice RM (1966) Vol. 4. Microlepidoptera. In: Forest Lepidoptera of Canada recorded by the Forest Insect Survey. Department of Forestry Canada, Publication 1142 (1965), 543–840.
Melampsora medusae (as Tsuga) (MELMME) Experimental
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.
Melampsora medusae f. sp. deltoidis (as Tsuga) (MELMMD) Experimental
* Pinon J (1986) Situation de Melampsora medusae en Europe. Bulletin OEPP/EPPO Bulletin 16, 547-551.
------- infection reported after following inoculation studies.
Arceuthobium laricis (as Tsuga) (ARELA) Host
Bursaphelenchus xylophilus (as Tsuga) (BURSXY) Host
Chionaspis pinifoliae (PHECPI) Host
* Wood, CS & van Sickle GA (1992) Pine needle scale in the Pacific and Yukon Region. Forestry Canada, Pacific Forestry Centre, Victoria, BC. FIDS Pest Report 92-09. Available at https://scf.rncan.gc.ca/publications?id=31590&&lang=en_CA
------ only occassionally observed.
Chionaspis pinifoliae (as Tsuga) (PHECPI) Host
* INTERNET
ScaleNet. Chionaspis pinifoliae. http://scalenet.info/catalogue/Chionaspis%20pinifoliae/
Choristoneura fumiferana (as Tsuga) (CHONFU) Host
Colletotrichum acutatum (COLLAC) Host
Coniferiporia weirii (INONWE) Host
Coniferiporia weirii (as Pinaceae) (INONWE) Host
Dendroctonus pseudotsugae (DENCPS) Host
Gnathotrichus sulcatus (GNAHSU) Host
Gnathotrichus sulcatus (as Pinaceae) (GNAHSU) Host
Heterobasidion irregulare (as Tsuga) (HETEIR) Host
Leptoglossus occidentalis (as Tsuga) (LEPLOC) Host
Melampsora farlowii (as Tsuga) (MELMFA) Host
Monochamus scutellatus (MONCST) Host
* Monné MA, Nearns EH (2021) Catalogue of the Cerambycidae (Coleoptera) of Canada and United States of America. Part IV. Subfamily Lamiinae. https://cerambycids.com/catalog/Monne&Nearns_2021_NearcticCat_part_IV.pdf
Monochamus scutellatus (as Tsuga) (MONCST) Host
* Akbulut S, Stamps WT (2012) Insect vectors of the pinewood nematode: a review of the biology and ecology of Monochamus species. Forest Pathology 42(2), 89-99. https://doi.org/10.1111/j.1439-0329.2011.00733.x

* Lindquist EE, Wu KW (1991) Review of mites of the genus Mucroseius (Acari, Mesostigmata, Ascidae) associated with sawyer beetles (Cerambycidae, Monochamus and Mecynippus) and pine wood nematodes Aphelenchoididae, Bursaphelenchus xylophilus (Steiner And Buhrer) Nickle, with descriptions of 6 new species from Japan and North-America, and notes on their previous misidentification. Canadian Entomologist 123(4), 875-927.
Neonectria neomacrospora (NECTMA) Host
Orgyia pseudotsugata (ORGYPS) Host
Phytophthora cinnamomi (as Pinaceae) (PHYTCN) Host
Phytophthora ramorum (PHYTRA) Host
* Webber JF, Mullet M & Brasier CM (2010) Dieback and mortality of plantation Japanese larch (Larix kaempferi) associated with infection by Phytophthora ramorum. New Disease Reports 22, 19.
Polygraphus proximus (as Tsuga) (POLGPR) Host
Acleris gloverana (ACLRGL) Major host
Arceuthobium tsugense (ARETS) Major host
* Calkins SJ, Shaw DC, Lan Y‐H (2021) Transformation of western hemlock (Tsuga heterophylla) tree crowns by dwarf mistletoe (Arceuthobium tsugense, Viscaceae). Forest Pathology 51, e12664. 

* Hawksworth FG, Wiens D (1996) Dwarf mistletoes: Biology, pathology, and systematics. USDA - Forest Service. Agriculture Handbook 709, 429 pp.
------- Principal host for A. tsugense subsp. tsugense but rare host for A. tsugense subsp. mertensianae.
Lambdina fiscellaria (LAMBFI) Major host
* Natural Resource Canada (2015) Western hemlock looper  https://tidcf.nrcan.gc.ca/en/insects/factsheet/1000002 
-------Lambina fiscellaria lugubrosa 
Lambdina fiscellaria (as Tsuga) (LAMBFI) Major host
* Maine Forest Service (2001) Hemlock looper Lambdina fiscellaria (Gn.). Maine Department of Conservation. https://www.maine.gov/dacf/mfs/forest_health/insects/hemlock_looper.htm 
------- Lambdina fiscellaria fiscellaria
Orgyia leucostigma (as Tsuga) (HEMELE) Major host
* Dedes J (2014) Whitemarked tussock moth (Orgyia leucostigma). Natural Resources Canada, Canadian Forest Service, Great Lakes Forestry Centre, Sault Ste. Marie, Ontario. Insect Production Services 2 p. https://cfs.nrcan.gc.ca/publications?id=35692
Phytophthora pluvialis (PHYTUV) Major host
* Pérez‐Sierra A, Chitty R, Eacock A, Jones B, Biddle M, Crampton M, Lewis A, Olivieri L, Webber JF (2022) First report of Phytophthora pluvialis in Europe causing resinous cankers on western hemlock. New Disease Reports 45(1):e12064. https://doi.org/10.1002/ndr2.12064
Sirococcus tsugae (SIROTS) Major host
* Rossman AY, Castlebury LA, Farr DF, Stanosz GR (2008) Sirococcus conigenus, Sirococcus piceicola sp. nov. and Sirococcus tsugae sp. nov. on conifers: anamorphic fungi in the Gnomoniaceae, Diaporthales. Forest Pathology 38, 47-60.