Douglas-fir tussock moth egg hatch and larval development in relation to phenology of white fir in southern Orgeon
By: Boyd E. Wickman
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research note PNW -- 295; USDA Forest Service research note PNW -- 295.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1977
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir tussock moth; Eggs; Development; Abies concolor; Phenology; Diseases and pests
Notes: Caption title.

"April 1977."

Errata sheet inserted.

Includes bibliographical references (p. 9).