EPPO Global Database

Choristoneura occidentalis occidentalis(ARCHOC)

Distribution details in United States of America (Oregon)

Current pest situation evaluated by EPPO on the basis of information dated 1994: Present, no details
* 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.

* Williams, D. W.; Liebhold, A. M. (1995) Environmental Entomology 24 (1), 1-9.
Situation in neighbouring countries
Country State Status
Canada Present, restricted distribution view...
Canada Alberta Present, restricted distribution view...
Canada British Columbia Present, restricted distribution view...