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Growth Response and Cost Comparisons for Precommercial Thinning Methods of Appalachian Oak Stump Sprout Clumps

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Twelve-year-old stems of stump sprout origin were subjected to precommercial crop tree release treatments in an intermediate quality mixed Appalachian oak forest. Three chemicals (2,4-D, triclopyr, and kerosene) and two application methods (Hypo-hatchet® injection and stem spray) were compared with one another and with chainsaw felling in terms of crop and competitor growth response to thinning, productivity, and cost efficiency. After 5 yr, 2,4-D stem spray, triclopyr stem spray, and chainsaw treatments produced incremental diameter growth 28, 25, and 22% greater than unthinned controls, respectively. Triclopyr stem spray and chainsaw treatments were also most effective in controlling competitors. Stem spray and injection required 40 and 58% less time, respectively, and cost less than chainsaw felling. These results suggest that stem spray application of herbicides can be a cost effective alternative to chainsaw thinning for precommercial crop stem release of oak stump sprouts. South. J. Appl. For. 22(1):19-23.

Document Type: Journal Article

Affiliations: Department of Forestry, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

Publication date: 1998-02-01

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  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
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