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Effects of Habitat Type and Elevation on Occurrence of Stalactiform Blister Rust in Stands of Lodgepole Pine. T. H. Beard, Former Graduate Research Assistant, College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow 83843. N. E. Martin, Research Plant Pathologist, Intermountain Forest and Range Experiment Station, Ogden, UT 84401, and D. L. Adams, Head, Department of Forest Resources, College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow. Plant Dis. 67:648-651. Accepted for publication 2 December 1982. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1983. DOI: 10.1094/PD-67-648.

Stalactiform blister rust, caused by Cronartium coleosporioides, occurs on hard pines throughout the northern United States and Canada. Locations of lodgepole pine reported in disease surveys of Idaho forests, 19681980, showed stalactiform blister rust occurring at elevations between 1,500 and 2,477 m. Abies lasiocarpa/Xerophyllum tenax and A. lasiocarpa/Vaccinium scoparium were the most common habitat types supporting lodgepole pine and stalactiform blister rust.

Keyword(s): Peridermium stalactiforme.