Historical patterns of western spruce budworm and Douglas-fir tussock moth outbreaks in the northern Blue Mountains, Oregon, since A.D. 1700
By: Thomas W. Swetnam ... [et al.]
Contributors: Swetnam, Thomas W; Pacific Northwest Research Station (Portland, Or.)
Series: Research paper PNW -- RP-484; Research paper PNW -- 484
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station
Published: 1995
Place of publication: Portland, Or
Language: eng
Format: Microform
Number of pages: 27
Subjects: Western spruce budworm -- Blue Mountains (Or. and Wash.) -- History; Douglas fir tussock moth -- Blue Mountains (Or. and Wash.) -- History; Dendrochronology -- Blue Mountains (Or. and Wash.)
Notes: Cover title

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Includes bibliographical references (p. 24-27)

Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., 1997 1 microfiche : negative