An evaluation of cone and seed insects in selected seed production areas in Region 1, progress report
By: by Jerald E. Dewey and Michael J. Jenkins.
Contributors: Jenkins, Michael J.; United States. Forest Service. Northern Region. State & Private Forestry.
Series: Forest insect & disease management; Forest insect and disease management report -- no. 79-16.; Report (United States. Forest Service. Northern Region) -- no. 79-16.
Publisher: U.S. Forest Service, Region 1, State and Private Forestry
Published: 1979
Place of publication: Missoula, Mont
Language: eng
Number of pages: 18
Subjects: Conifers -- Seeds -- Diseases and pests -- Montana.; Conifers -- Seeds -- Diseases and pests -- Idaho.; Forest insects -- Montana.; Forest insects -- Idaho.
Description: An evaluation was made in 21 seed production areas and 1 seed orchard in Region 1 to identify the primary insect pests and to assess amount of injury caused. Cones from Douglas-fir, grand fir, western larch, lodgepole pine, ponderosa pine, and western white pine were collected periodically and examined. The primary insect species observed were western spruce budworm on Douglas-fir, grand fir, and western larch; midges on Douglas fir, grand fir, western larch, ponderosa pine, and lodgepole pine; coneworms on Douglas-fir, grand fir, western larch, and ponderosa pine; and the Douglas-fir cone moth on Douglas-fir.
Notes: "June 1979."

Includes bibliographical references.

Also issued online.