Choristoneura occidentalis occidentalis(ARCHOC)
Distribution details in United States of America (Wyoming)
Current pest situation evaluated by EPPO on the basis of information dated
1994: Present, no details
* Fellin, D. G.; Shearer, R. C.; Carlson, C. E. (1983) Western Wildlands 9 (1), 2-7.
* Furniss RL, Carolin VM (1977) Western Forest Insects. USDA , Forest Service Miscellaneous Publication no. 1339, 654 pp.
* Pogue, M. G.; Lavigne, R. J. (1984) Proceedings of the Entomological Society of Washington 86 (2), 439-442.
------- A distribution map for Wyoming has been prepared from collection and trap data.
* Furniss RL, Carolin VM (1977) Western Forest Insects. USDA , Forest Service Miscellaneous Publication no. 1339, 654 pp.
* Pogue, M. G.; Lavigne, R. J. (1984) Proceedings of the Entomological Society of Washington 86 (2), 439-442.
------- A distribution map for Wyoming has been prepared from collection and trap data.
| Country | State | Status | |
|---|---|---|---|
| Canada | Present, restricted distribution | ||
| Canada | Alberta | Present, restricted distribution | |
| Canada | British Columbia | Present, restricted distribution |