Continuous evaluation and reporting of a changing spruce budworm damage picture in Canada
By: by W.L. Sippell.
Contributors: Great Lakes Forest Research Centre.; Canada/United States Spruce Budworms Program.; Canadian Forestry Service.
Publisher: Environment Canada Distribution Centre
Published: 1983
Place of publication: Quebec
Language: eng
Number of pages: 31
Subjects: Spruce budworm -- Canada; Spruce -- Diseases and pests -- Canada
Other titles: Evaluation continue du tableau changeant des dommages causés par la tordeuse des bourgeons de l'épinette au Canada.
Notes: Issued also in French under title: Evaluation continue du tableau changeant des dommages causés par la tordeuse des bourgeons de l'épinette au Canada.

Includes abstracts in French and English.

"CANUSA" Canada United States Spruce Budworms Program--Cover.

Sponsored by: Great Lakes Forest Research Centre; Spruce Budworm Implementation Plan, Activity A, Working Group A4/A5; Canadian Forestry Service, Environment Canada.

Bibliography: p. 29-31.