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The Budworm Modeling System is a set of four computer programs: The Budworm Dynamics Model, the Prognosis-Budworm Dynamics Model, the Prognosis-Budworm Damage Model, and the Parallel Processing-Budworm Dynamics Model. Input to the first three programs and the output produced are described in this…
Author(s): Nicholas L. Crookston, J. J. Colbert, Paul W. Thomas, Katharine A. Sheehan, William P. Kemp
Keywords: Choristoneura occidentalis Freeman, simulation, pest management
Source: Gen. Tech. Rep. INT-GTR-274. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 75 p.
Year: 1990
This pictorial describes how western spruce budworm larvae feed on young western larch and the trees' responses to this damage. Larvae feed not only on the current year's foliage-their usual diet on most coniferous hosts-but also sever stems of current year's shoots. Multiple-topped, bushlike trees…
Author(s): David G. Fellin, Wyman C. Schmidt
Keywords: Lepidoptera (-forest damage), shoot damage, western spruce budworm, Choristoneura occidentalis Freeman, western larch, Larix occidentalis Nutt
Source: Gen. Tech. Rep INT-GTR-7. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 25 p.
Year: 1973