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

Robert F. Scharpf

Treesearch

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

Informally Refereed

Authors:

Robert F. Scharpf

Year:

1969

Type:

Research Paper

Station:

Pacific Southwest Research Station

Source:

Res. Pap. PSW-050. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 8 p

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Download (PDF 617 KB): https://research.fs.usda.gov/download/treesearch/29560.pdf

Abstract

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.

Keywords

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

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