Root and Butt Rot Fungi on Balsam Fir and Red Spruce in the White Mountains, New Hampshire. D. M. Rizzo, Department of Botany and Plant Pathology, University of New Hampshire, Durham 03824. T. C. Harrington, Department of Botany and Plant Pathology, University of New Hampshire, Durham 03824. Plant Dis. 72:329-331. Accepted for publication 15 November 1987. Copyright 1988 The American Phytopathological Society. DOI: 10.1094/PD-72-0329.

Sixteen species of hymenomycetes were isolated and identified from decay in roots or butt sections of 103 balsam fir and 25 red spruce trees in the White Mountains, New Hampshire. Resinicium bicolor, an unidentified species of Corticiaceae related to Resinicium, and Scytinostroma galactinum were the most frequently isolated fungi from trees in the subalpine zone (above 800 m elevation). Armillaria sp. (probably A. obscura) was the most commonly isolated fungus at lower elevations.