Recovering western spruce budworm larvae from sticky traps covered with volcanic ash
By: Leon J. Theroux, David G. Fellin
Contributors: Fellin, David G.; Forestry Sciences Laboratory (Missoula, Mont.); Canusa/United States Spruce Budworms Program; United States. Forest Service; Intermountain Forest and Range Experiment Station (Ogden, Utah)
Series: Research note INT -- 323; Research note INT -- 323.
Publisher: U.S. Dept. of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station
Published: 1982
Place of publication: Odgen, Utah
Language: eng
Subjects: Larvae; Western spruce budworm
Notes: "Canusa, Canada United States Spruce Budworms Program."

"December 1982."

Includes bibliographical references (p. 5).