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Article
Distribution of Three Dwarf Mistletoe Species within Their Host Tree Crowns
Western Journal of Applied Forestry (2010)
  • Fred A. Baker, Utah State University
  • John Guyon
Abstract
We examined the distribution of dwarf mistletoes within the crowns of Douglas-firs, ponderosa pines, and lodgepole pines. Stand structure and host species had no effect on the proportion of trees within each dwarf mistletoe rating (DMR) class, nor did it affect the distribution of dwarf mistletoe within crown thirds for a given DMR. Dwarf mistletoe tended to infect the lower third of the crown first in all three species. Regardless of DMR, dwarf mistletoe usually intensified in the lowest crown third before doing so in the other thirds. These results are consistent with the distributions of dwarf mistletoe among crown thirds assumed in the Forest Vegetation Simulator for even-aged stands and are also appropriate for uneven-aged stands of Douglas-fir, ponderosa pine, and lodgepole pine. Relationships between percentage of plot infection and DMR and dwarf mistletoe index were strong.
Keywords
  • dwarf mistletoe rating; mistletoe intensification; mistletoe simulation
Disciplines
Publication Date
October, 2010
Citation Information
Fred A. Baker and John Guyon. "Distribution of Three Dwarf Mistletoe Species within Their Host Tree Crowns" Western Journal of Applied Forestry Vol. 25 Iss. 4 (2010)
Available at: http://works.bepress.com/fred_baker/11/