Distribution of larch casebearer parasites in the crowns of western larch trees in the northern region
By: [by Scott Tunnock, Mark McGregor, and Wayne Bousfield].
Contributors: McGregor, Mark D.; Bousfield, Wayne E.; United States. Forest Service. Northern Region. State & Private Forestry.
Series: Report / U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region -- no. 72-4.; Report (United States. Forest Service. Northern Region) -- no. 72-4.
Publisher: U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region
Published: 1972
Place of publication: Missoula, Mont
Language: eng
Subjects: Chalcid wasps -- Northwest, Pacific.; Larch casebearer -- Parasites -- Northwest, Pacific.; Braconidae -- Northwest, Pacific.
Notes: Cover title.

"March 1972."

Includes bibliographical references (p. 6).

Also available online.