Forecasting outbreaks of the Douglas-fir tussock moth from lower crown cocoon samples
By: R.R. Mason, D.W. Scott, and H.G. Paul.
Contributors: Mason, Richard R.; Scott, D. W.; Paul, H. Gene.; Pacific Northwest Research Station (Portland, Or.)
Series: Research paper / United States, Dept. of Agriculture, Forest Service, Pacific Northwest Research Station -- PNW-RP-460.; Research paper PNW -- 460.
Publisher: United States, Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1993
Place of publication: Portland, Or
Language: eng
Number of pages: 12
Subjects: Douglas-fir tussock moth.; Douglas fir -- Diseases and pests -- British Columbia.
Notes: Cover title.

"March, 1993."

Shipping list no.: 93-0689-M.

Includes bibliographical references (p. 12).

Also issued online.