spruce budworm: References & Edit History

Article Contributors

Primary Contributors

  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Invalidated site: Maine Department of Agriculture, Conservation and Forestry - Spruce Budworm. May 25, 2022
Add new Web site: Maine Department of Agriculture, Conservation and Forestry - Spruce Budworm. Apr 30, 2021
Add new Web site: Natural Resources Canada - Spruce Budworm. Jun 04, 2013
Add new Web site: BugGuide - Spruce Budworm. Sep 03, 2012
Add new Web site: Trees Winnipeg - The Spruce Budworm. Sep 03, 2012
Add new Web site: United State Department of Agriculture - Spruce Budworm. Sep 03, 2012
New article added. Mar 25, 2009
View Changes:
Article History
Revised:
By: