Choristoneura occidentalis occidentalis(ARCHOC)
Distribution details in Canada
Current pest situation evaluated by EPPO on the basis of information dated
2013: Present, restricted distribution
* Brookes, M. H.; Campbell, R. W.; Colbert, J. J.; Mitchell, R. G.; Stark, R. W. (Technical Coordinators) (1987) Technical Bulletin, US Department of Agriculture No. 1694, 198 pp.
* Brunet B, Sperling FAH (2013) Identification and ecological characterisation of Choristoneura occidentalis (Lepidoptera: Tortricidae) populations in southwestern Alberta, Canada. The Canadian Entomologist 145, 521-528.
------- Defoliation of Pseudotsuga menziesii subps. glauca was first recorded in the Porcupine Hills of Southwestern Alberta in 2005.
* Furniss RL, Carolin VM (1977) Western Forest Insects. USDA , Forest Service Miscellaneous Publication no. 1339, 654 pp.
* Nealis V (2005) Diapause and voltinism in western and 2-year cycle spruce budworms (Lepidoptera: Tortricidae) and their hybrid progeny. The Canadian Entomologist 137, 584-597.
------- It is at the northern limit of its natural range in British Columbia and is associated most commonly with Pseudotsuga menziesii.
* Brunet B, Sperling FAH (2013) Identification and ecological characterisation of Choristoneura occidentalis (Lepidoptera: Tortricidae) populations in southwestern Alberta, Canada. The Canadian Entomologist 145, 521-528.
------- Defoliation of Pseudotsuga menziesii subps. glauca was first recorded in the Porcupine Hills of Southwestern Alberta in 2005.
* Furniss RL, Carolin VM (1977) Western Forest Insects. USDA , Forest Service Miscellaneous Publication no. 1339, 654 pp.
* Nealis V (2005) Diapause and voltinism in western and 2-year cycle spruce budworms (Lepidoptera: Tortricidae) and their hybrid progeny. The Canadian Entomologist 137, 584-597.
------- It is at the northern limit of its natural range in British Columbia and is associated most commonly with Pseudotsuga menziesii.
| Country | State | Status | |
|---|---|---|---|
| United States of America | Montana | Present, no details | |
| United States of America | Wyoming | Present, no details | |
| United States of America | Utah | Present, no details | |
| United States of America | Present, restricted distribution | ||
| United States of America | Arizona | Present, no details | |
| United States of America | New Mexico | Present, no details | |
| United States of America | California | Present, no details | |
| United States of America | Washington | Present, no details | |
| United States of America | Oregon | Present, no details | |
| United States of America | Idaho | Present, no details | |
| United States of America | Colorado | Present, no details |