EPPO Global Database

Choristoneura occidentalis occidentalis(ARCHOC)

Distribution details in Canada

Situation
Current pest situation evaluated by EPPO on the basis of information dated 2013: Present, restricted distribution
References
* 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.
Situation in neighbouring countries
Country State Status
United States of America Montana Present, no details view...
United States of America Wyoming Present, no details view...
United States of America Utah Present, no details view...
United States of America Present, restricted distribution view...
United States of America Arizona Present, no details view...
United States of America New Mexico Present, no details view...
United States of America California Present, no details view...
United States of America Washington Present, no details view...
United States of America Oregon Present, no details view...
United States of America Idaho Present, no details view...
United States of America Colorado Present, no details view...