Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Life Sciences
Douglas-Fir Beetle Infestation Following The Clover Mist Fire On The Clarks Fork Ranger District, Shoshone National Forest, Wyoming, Judith Pasek
Judith E Pasek
In 1989, Douglas-fir beetle (DFB), Dendroctonus pseudotsugae Hopkins, was detected on the Clarks Fork Ranger District in large-diameter Douglas-fir, Pseudotsuga menziesii (Mirb.) Franco, trees blackened by the 1988 Clover Mist Fire. At Cathedral Cliffs and Squaw Creek, respectively, 22% and 32% of charred Douglas-firs greater than 10 in. DBH were infested; approximately 9 and 16 Douglas-fir trees per acre were infested, respectively. Although half the bark samples (6 in. by 6 in.) from infested trees contained no DFB brood, average brood production was high -- 9 and 7 callow adults per sample, respectively, at Cathedral Cliffs and Squaw Creek. Approximately …