A method for sampling western spruce budworm pupae
By: Nilima Srivastava ... [et al.]
Contributors: Srivastava, Nilima; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research note PNW -- 372
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1981
Place of publication: [Portland, Or.?]
Language: eng
Subjects: Western spruce budworm
Notes: Caption title

Bibliography: p. 6