Larval densities and trends of insect species associated with spruce budworms in buds and shoots in Oregon and Washington
By: V. M. Carolin
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.); United States. Forest Service
Series: USDA Forest Service research paper PNW -- 273
Publisher: Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1980
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 18
Subjects: Buds -- Diseases and pests -- Oregon; Buds -- Diseases and pests -- Washington (State); Insect populations; Insects -- Larvae; Shoots (Botany) -- Diseases and pests -- Oregon; Shoots (Botany) -- Diseases and pests -- Washington (State); Western spruce budworm -- Oregon; Western spruce budworm -- Washington (State)
Notes: Issued June 1980

Bibliography: p. 16