Pacific Northwest Research Station

Title: Incidence of decay fungi in stumps of two thinned western larch stands in northeastern Oregon.

Author: Filip, Gregory M.; Parks, Catherine A.; Seidel, Kenneth W.; Lombard, Frances F.

Date: 1987

Source: Res. Note PNW-RN-468. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p

Station ID: RN-PNW-468

Description: Incidence of decay fungi was measured in stumps from two thinned western larch (Larix occidentalis Nutt.) stands (9 and 15 years after thinning), one precommercially thinned and one commercially thinned, in northeastern Oregon. Ten species of decay fungi were positively identified from 180 stumps. Two root pathogenic species, Heterobasidion annosum (Fr.) Bref. and Armillaria obscura (Pers.) Herink Roll-Hansen, were found at relatively low frequencies. Most of the decay in the stumps was caused by either Fomitopsis pinicola (Swartz ex Fr.) Karst. or Trichaptum abietinum (Dicks, ex Fr.) Ryv., which normally are saprophytic wood decomposers.

Keywords: Decay fungi, thinning, western larch, Oregon

View and Print this Publication (223 KB)

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 pubrequest@fs.f ed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

 Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

Citation

Filip, Gregory M.; Parks, Catherine A.; Seidel, Kenneth W.; Lombard, Frances F.  1987.  Incidence of decay fungi in stumps of two thinned western larch stands in northeastern Oregon..   Res. Note PNW-RN-468. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p