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Filtering by: Creator Frazier, W. A. Degree Field BioResource Research

Pathogenicity to western larch (Larix occidentalis) of two fungi, Ophiostoma oseudotsugae and Leptoaraghium abietinum, associated with the douglas-fir beetle (Coleoptera: Scolytidae) in Eastern Oregon, U.S.A.

Creator:

Neal, Tiffany A. and Ross, Darrell W.

Abstract:

Pole-sized, live western larch Larix occidentalis Nutt.) were inoculated with Ophiostoma pseudotsugae(Rumb.) von Arx or Leptographium abietinum (Peck) Wingf., two blue stain fungi associated with the Douglas-fir beetle (Dendroctonous pseudotsugae Hopkins), to assess their pathogenicity. Inoculation with O. pseudotsugae resulted in a significantly greater percentage of necrotic phloem compared to...

Resource Type:

Undergraduate Thesis