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    Author(s): Robert F. Scharpf
    Date: 1969
    Source: Res. Pap. PSW-050. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p
    Publication Series: Research Paper (RP)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (602 KB)

    Description

    Height and age of understory red fir (Abies magnifica A. Murr.) were related to dwarf mistletoe (Arceuthobiilm campylopodum f. abietinum) infection from the surrounding overstory red fir on four National Forests in California. Percentage of trees infected and intensity of infection increased significantly as height of understory tree increased. Age of understory trees appeared to be closely related to infection in only the youngest age class studied.

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    Citation

    Scharpf, Robert F. 1969. Dwarf Mistletoe on Red Fir . . . infection and control in understory stands. Res. Pap. PSW-050. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p

    Keywords

    Arceuthobiurn campylopodum f. abietinum, epidemiology, predisposing factors, cutting systems, stocking density, Abies magnifica, disease control

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