Notes: Radial Enlargement of Mortality Centers Caused By Arceuthobium pusillum Peck in Black Spruce Stands
Sequential aerial photography of dwarf mistletoe (Arceuthobium pusillum infested black spruce stands (Picea mariana [Mill.] BSP.) was used to measure the radial enlargement of circular mortality centers. Site index and stand density had no effect on the average 4.7 ± 3.3 ft/yr expansion rate. Methods for determining spread rates are discussed. For. Sci. 37(1):364-367.
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Document Type: Miscellaneous
Affiliations: Professor, Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108
Publication date: 01 March 1991