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: USDA Forest Service research paper PNW -- 262
Publisher: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1979
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 12
Subjects: Larch casebearer -- Control -- United States
Notes: Issued Oct. 1979

Bibliography: p. 10-11