Pacific Southwest Research Station

Publication Information

Title: Dwarf Mistletoe on Red Fir . . . infection and control in understory stands

Author: Scharpf, Robert F.

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

Station ID: RP-PSW-050

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.

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

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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.