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Filtering by: Creator Stambaugh, Sharmon M. Advisor Roth, Lewis F.

Epidemiological insights into Armillaria mellea root rot in a managed Ponderosa pine forest

Creator:

Shaw, Charles G. (Charles Gardner) 1948-

Abstract:

Root rot of ponderosa pine caused by Armillaria mellea was studied in a pine forest that had been under management for 30 years in Klickitat County, Washington. Information sources included disease survey, detailed observation and description of specific disease situations, and examination of roots in situ and removed. Roughly circular...

Resource Type:

Dissertation

Full Text:

m) /year. Cross plating techniques indicated that the 1500 acre study area was occupied by a
Infection of stressed ponderosa pines by Armillariella mellea from indigenous and artificial inoculum sources

Creator:

Fuller, Lloyd Randolph

Abstract:

Armillariella mellea (Vahl. ex Fr. ) Karst. was grown aseptically in hazel stems (Corylus cornuta var. californica) which were used in the forest to infect 290 ponderosa pines (Pinus ponderosa Laws.) which had been "stressed" in five different manners plus two control groups. All trees were inoculated twice giving a...

Resource Type:

Dissertation

Full Text:

cm of the soil surface. In 30 cm 2 pits at the intersections of a 10 m by 10 m grid Redfern (1973