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Control of Understory Vegetation in Allegheny Hardwood Stands with Oust

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Sulfometuron methyl (methyl 2-[[[[(4,6-dimethyl-2-pyrimidinyl) - amino]carbonyl]amino]sulfonyl]-benzoate), marketed under the trade name Oust Weed Killer by E. I. DuPont de Nemours and Co., was evaluated for its ability to control three herbaceous (hay-scented fern, New York fern, and short husk grass) and two woody species (striped maple and American beech) in the under-story of Allegheny hardwood stands. The herbicide was applied at four rates, 0, 2, 4, and 8 oz of product/ac, at the beginning of each month from May through November. Both ferns were nearly completely controlled at all application rates made between July 1 and October 1. Other dates of application gave less control and were rate-dependent. Short husk grass was not completely controlled at any time, but the most effective treatments were for the highest rate applied from September 1 through November 1. Striped maple and beech were not affected by any of the treatments. North. J. Appl. For. 5:261-262, December 1988.

Document Type: Journal Article

Affiliations: Forestry Sciences Laboratory, P.O. Box 928, Warren, PA 16365

Publication date: December 1, 1988

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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 Northern Journal of Applied Forestry covers northeastern, midwestern, and boreal forests in the United States and Canada.
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