Causes of hemlock mortality in northern Michigan
By: by Samuel A. Graham.
Series: University of Michigan School of forestry and conservation. Bulletin; no. 10
Publisher: University of Michigan press
Published: 1943
Place of publication: Ann Arbor
Language: eng
Number of pages: 61
Subjects: Hemlock -- Diseases and pests.; Forests and forestry -- Michigan.; Melanophila fulvoguttata.
Notes: "Literature cited": leaf at end.