Illustrated key to introduced and common native parasites of larch casebearer
By: Roger B. Ryan
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.); United States. Forest Service
Series: Research paper PNW -- 262
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1979
Place of publication: Portland, Or
Language: eng
Number of pages: 12
Subjects: Larch casebearer; Control
Notes: Cover title.

Issued Oct. 1979.

Bibliography: p. 10-11.