Choristoneura occidentalis occidentalis(ARCHOC)
Distribution details in United States of America (Washington)
Current pest situation evaluated by EPPO on the basis of information dated
1994: Present, no details
* Aho, P. E. (1984) Research Paper, Pacific Northwest Forest and Range Experiment Station, USDA Forest Service No. PNW-318, 8 pp.
* Furniss RL, Carolin VM (1977) Western Forest Insects. USDA , Forest Service Miscellaneous Publication no. 1339, 654 pp.
* Kemp, W. P.; Everson, D. O.; Wellington, W. G. (1985) Technical Bulletin - United States Department of Agriculture No. 1693, 31 pp.
* Torgersen, T. R.; Colbert, J. J.; Hosman, K. P. (1993) Forest Science 39 (3), 573-593.
* Furniss RL, Carolin VM (1977) Western Forest Insects. USDA , Forest Service Miscellaneous Publication no. 1339, 654 pp.
* Kemp, W. P.; Everson, D. O.; Wellington, W. G. (1985) Technical Bulletin - United States Department of Agriculture No. 1693, 31 pp.
* Torgersen, T. R.; Colbert, J. J.; Hosman, K. P. (1993) Forest Science 39 (3), 573-593.
| Country | State | Status | |
|---|---|---|---|
| Canada | Present, restricted distribution | ||
| Canada | Alberta | Present, restricted distribution | |
| Canada | British Columbia | Present, restricted distribution |