Green alert
By: Forest Insect & Disease Survey.
Contributors: Canada. Forestry Canada.; Forest Insect and Disease Survey (Canada)
Publisher: Forestry Canada
Published: 1989
Place of publication: [Ottawa]
Language: eng
Number of pages: 26
Subjects: Forest Insect and Disease Survey (Canada); Forest insects -- Canada; Trees -- Diseases and pests -- Canada; Forest protection -- Canada; Acid rain -- Canada
Other titles: Alerte verte.
Notes: Issued also in French under title: Alerte verte.

Cover title.