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Publication Information

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Title: Larval densities and trends of insect species associated with spruce budworms in buds and shoots in Oregon and Washington.

Author: Carolin, V.M.;

Date: 1980

Source: Res. Pap. PNW-RP-273. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 24 p

Publication Series: Research Paper (RP)

Description: Sampling studies on western spruce budworm and Modoc budworm disclosed a substantial number of associated insect species at the time larvae were in opening buds. About 20 species occur with sufficient regularity to justify identification by field crews.

Keywords: Insect populations, reproductive behavior (insect), western spruce budworm, identification (insect), Choristoneura occidentalis, Modoc budworm, Choristoneura viridis

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
  • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

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Citation:


Carolin, V.M. 1980. Larval densities and trends of insect species associated with spruce budworms in buds and shoots in Oregon and Washington. Res. Pap. PNW-RP-273. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 24 p

 


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