The occurrence of the hemlock looper (Lambdina fiscellaria (Guenée)) (Lepidoptera: Geometriadae) in southeast Alaska, with notes on its biology
By: by Torolf R. Torgersen and Bruce H. Baker.
Contributors: Baker, Bruce H.; Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: U.S. Forest Service research note PNW -- 61.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1967
Place of publication: Portland, Or
Language: eng
Subjects: Hemlock looper -- Alaska.; Sitka spruce -- Diseases and pests -- Alaska.
Notes: Caption title.

"July 1967."

Includes bibliographical references.