Canadian Forest Service Publications
Relating weather to outbreaks of western spruce budworm, Choristoneura occidentalis (Lepidoptera: Tortricidae), in British Columbia. 1984. Thomson, A.J.; Shepherd, R.F.; Harris, J.W.E.; Silversides, R.H. The Canadian Entomologist 116: 375-381.
Issued by: Pacific Forestry Centre
Catalog ID: 2296
Available from the Journal's Web site. †
† This site may require a fee