Important forest insects and diseases of mutual concern to Canada, the United States and Mexico.
Subtitle: Compiled and edited by A.G. Davidson and R.M. Prentice.
Contributors: Davidson, A. G; Prentice, R. M; Canada. Dept. of Forestry and Rural Development
Publisher: Dept. of Forestry and Rural Development]
Published: 1967
Place of publication: [Ottawa
Language: eng
Number of pages: 248
Subjects: Forest insects -- North America; Plant diseases -- North America; Trees -- Diseases and pests