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    Author(s): L.F. Roth
    Date: 1953
    Source: PNW Old Series Research Notes No. 91, p. 1-3
    Publication Series: Scientific Journal (JRNL)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (270 KB)


    Dwarfmistletoe (Arceuthobium campylopodum forma typicum (Engelm.) Gill) is widespread in the ponderosa pine forests of Oregon and Washington. The importance of dwarfmistletoe as a damaging agent in the pine forest of the Pacific Northwest was described by Weir in 1916. In some localities present infestations are so heavy that forest productivity is doubtless greatly lowered. Many observers consider that even moderate infections cause growth reductions that are unwarranted in managed forests.

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    Roth, L.F. 1953. Pine dwarfmistletoe on the Pringle Falls Experimental Forest. PNW Old Series Research Notes No. 91, p. 1-3

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