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Publication Information

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Title: Laminated root rot in western North America.

Author: Thies, Walter G.; Sturrock, Rona N.;

Date: 1995

Source: Gen. Tech. Rep. PNW-GTR-349. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 32 p. In cooperation with: Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre

Publication Series: General Technical Report (GTR)

Description: Laminated root rot, caused by Phellinus weirii (Murr.) Gilb., is a serious root disease affecting Douglas-fir and other commercially important species of conifers in northwestern North America. This report gives an overview of the dis-ease as it occurs in the Pacific Northwest in Canada and the United States. Information on recognizing crown symptoms and signs of the disease is presented. The disease cycle of laminated root rot, from initiation to intensification and distribution within infected stands, is described. Finally, disease management strategies during stand development and at stand regeneration are discussed. Features on the nomenclature of the fungus and on its management by silvicultural and mechanical approaches also are included. The report is intended as a general reference for a wide audience.

Keywords: lnonotus sulphurascens, laminated root rot, Phellinus sulphurascens, Phellinus weiri, Poria weirii, root diseases

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:


Thies, Walter G.; Sturrock, Rona N. 1995. Laminated root rot in western North America. Gen. Tech. Rep. PNW-GTR-349. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 32 p. In cooperation with: Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre

 


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