Choristoneura occidentalis occidentalis(ARCHOC)
Distribution details in United States of America
Current pest situation evaluated by EPPO on the basis of information dated
1994: 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.
* Hofacker, T. H.; Loomis, R. C.; Fowler, R. F. (Technical Coordinators) (1989) Forest insect and disease conditions in the United States, 112 pp.
* USDA (1985) General Technical Report, USDA Forest Service, Washington, DC No. WO-46, 93 pp.
* Hofacker, T. H.; Loomis, R. C.; Fowler, R. F. (Technical Coordinators) (1989) Forest insect and disease conditions in the United States, 112 pp.
* USDA (1985) General Technical Report, USDA Forest Service, Washington, DC No. WO-46, 93 pp.
| Country | State | Status | |
|---|---|---|---|
| Canada | Present, restricted distribution | ||
| Canada | Alberta | Present, restricted distribution | |
| Canada | British Columbia | Present, restricted distribution |