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    Author(s): R.F. Scharpf
    Date: 1969
    Source: Phytopathology
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (677.0 KB)


    Cytospora abietis was commonly found associated with dwarf mistletoe (Arceuthobium campylopodum f. sp. abietinum) parasitizing branches of white fir (Abies concolor) and red fir (A. magnifica). Twenty-two per cent of all branches bearing dwarf mistletoe were infected by C. abietis. Of 235 isolates of the fungus, only 9 (4%) were from branches not invaded by dwarf mistletoe. Both white and red fir are equally susceptible to infection by C. abietis. Geographic location in California and age of dwarf mistletoe were not important factors influencing infection by C. abietis.

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    Scharpf, R.F. 1969. Cytospora abietis associated with dwarf mistletoe on true firs in California. Phytopathology. 59(11): 1657-1658.

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