Foliage insects of spruce in Canada
Contributors: Canada. Dept. of Agriculture
Series: Canada dept. of agriculture publication -- 712; Publication -- no. 712.; Technical bulletin -- 31
Published: 1941
Language: eng
Number of pages: 29
Subjects: Spruce; Lutte contre les Insectes forestiers; Épinette; Maladies et fléaux; Diseases and pests
Notes: Includes bibliographical references.